diff --git a/convert_pubkey.pl b/convert_pubkey.pl
index 6675fa0..0444758 100644
--- a/convert_pubkey.pl
+++ b/convert_pubkey.pl
@@ -73,20 +73,20 @@ if ($options{'help'}) {
 # check file parameter
 if ($options{'file'}) {
     $key_file = $options{'file'};
-	unless (-f $key_file) {
-		die "ERROR: input file $key_file not found [$!]";
-	}
+    unless (-f $key_file) {
+        die "ERROR: input file $key_file not found [$!]";
+    }
 } else {
-		die "ERROR: missing value for --file parameter";
+        die "ERROR: missing value for --file parameter";
 }
 # check label parameter
 if ($options{'label'}) {
     $key_label = $options{'label'};
-	if (not (defined ($key_label) or $key_label eq "")) {
-		die "ERROR: key label not defined";
-	}
+    if (not (defined ($key_label) or $key_label eq "")) {
+        die "ERROR: key label not defined";
+    }
 } else {
-		die "ERROR: missing value for --label parameter";
+        die "ERROR: missing value for --label parameter";
 }
 
 # -----------------------------------------------------------------------------
@@ -99,33 +99,33 @@ close (KEY_FILE);
 
 # determine type of key
 if (grep { /$key_algo/ } @key_file) {
-	$key_type = 1;
+    $key_type = 1;
 } else {
-	$key_type = 2;
+    $key_type = 2;
 }
 
 # process key
 SWITCH: {
-	$key_type ==  1 && do {
-		# 1 line only!!
-		foreach (@key_file) {
-			chomp;	
-			($key_algo, $key_line) = split (/ /);
-		};
-		last SWITCH;	
-	};
-	$key_type ==  2 && do {
-		foreach (@key_file) {
-			chomp;
-			# skip BEGIN/END lines
-			next if (/^----/);
-			# skip Comment field
-			next if (/^Comment/);
-			$key_line .= $_;
-		}
-	last SWITCH;
-	};	
-}	
+    $key_type ==  1 && do {
+        # 1 line only!!
+        foreach (@key_file) {
+            chomp;  
+            ($key_algo, $key_line) = split (/ /);
+        };
+        last SWITCH;    
+    };
+    $key_type ==  2 && do {
+        foreach (@key_file) {
+            chomp;
+            # skip BEGIN/END lines
+            next if (/^----/);
+            # skip Comment field
+            next if (/^Comment/);
+            $key_line .= $_;
+        }
+    last SWITCH;
+    };  
+}   
 
 # mangle space in label
 $key_label =~ tr/ /_/s;
@@ -152,7 +152,7 @@ convert_pubkey.pl - converts public keys for SSH controls format (SSH-RSA)
 =head1 SYNOPSIS
 
     update_ssh.pl -f|--file=<public_key> -l|--label=<label_name>
-                  [-h|--help] 	
+                  [-h|--help]   
                   [-V|--version]
 
                  
diff --git a/manage_ssh.sh b/manage_ssh.sh
index 86f544d..abc1565 100644
--- a/manage_ssh.sh
+++ b/manage_ssh.sh
@@ -810,7 +810,7 @@ do
             log "child process ${PID} exited [OK]"
         fi
     done
-    # break loop if we no child PIDs left
+    # break loop if we have no child PIDs left
     (($# > 0)) || break
     sleep 1     # required to avoid race conditions
 done
@@ -941,17 +941,17 @@ done
 # check for configuration files (local overrides local)
 if [[ -r "${SCRIPT_DIR}/${GLOBAL_CONFIG_FILE}" || -r "${SCRIPT_DIR}/${LOCAL_CONFIG_FILE}" ]]
 then
-	if [[ -r "${SCRIPT_DIR}/${GLOBAL_CONFIG_FILE}" ]]
-	then	
-		. "${SCRIPT_DIR}/${GLOBAL_CONFIG_FILE}"
-	fi
-	if [[ -r "${SCRIPT_DIR}/${LOCAL_CONFIG_FILE}" ]]
-	then
-		. "${SCRIPT_DIR}/${LOCAL_CONFIG_FILE}"
-	fi
+    if [[ -r "${SCRIPT_DIR}/${GLOBAL_CONFIG_FILE}" ]]
+    then    
+        . "${SCRIPT_DIR}/${GLOBAL_CONFIG_FILE}"
+    fi
+    if [[ -r "${SCRIPT_DIR}/${LOCAL_CONFIG_FILE}" ]]
+    then
+        . "${SCRIPT_DIR}/${LOCAL_CONFIG_FILE}"
+    fi
 else
-	print -u2 "ERROR: could not find global or local configuration file"
-fi	
+    print -u2 "ERROR: could not find global or local configuration file"
+fi  
 
 # startup checks
 check_params && check_config && check_setup && check_logging
@@ -994,7 +994,7 @@ case ${ARG_ACTION} in
                 # wait until all background processes are completed
                 wait_for_children ${PIDS} || \
                     warn "$? background jobs (possibly) failed to complete correctly"
-                PIDS=''  
+                PIDS=''
                 # reset max updates in background
                 COUNT=${MAX_BACKGROUND_PROCS}
             fi
@@ -1036,7 +1036,7 @@ case ${ARG_ACTION} in
                     warn "$? background jobs (possibly) failed to complete correctly"
                 PIDS=''
                 # reset max updates in background
-                COUNT=${MAX_BACKGROUND_PROCS}               
+                COUNT=${MAX_BACKGROUND_PROCS}
             fi
         done
         # final wait for background processes to be finished completely
diff --git a/update_ssh.conf b/update_ssh.conf
index 62946f5..c47e7bf 100644
--- a/update_ssh.conf
+++ b/update_ssh.conf
@@ -20,4 +20,4 @@ blacklist_file=/etc/kudos/ssh_controls/keys.blacklisted
 
 #******************************************************************************
 # End of FILE
-#******************************************************************************
+#******************************************************************************
\ No newline at end of file
diff --git a/update_ssh.pl b/update_ssh.pl
index 70fae3f..fc92b3c 100644
--- a/update_ssh.pl
+++ b/update_ssh.pl
@@ -545,7 +545,7 @@ unless ($preview) {
                         last SWITCH_RELEASE;
                     };
                 }
-			}
+            }
             # use fall back in case we cannot determine the version
             if (not (defined ($linux_version)) or $linux_version eq "") {               
                 $selinux_context = 'etc_t';
@@ -554,10 +554,10 @@ unless ($preview) {
                 $selinux_context = $selinux_contexts{$linux_version};
             }
             if ($has_selinux) {
-				do_log ("INFO: runtime info: OS major version $linux_version, SELinux context $selinux_context on $hostname");
-			} else {
-				do_log ("INFO: runtime info: OS major version $linux_version on $hostname");
-			}   
+                do_log ("INFO: runtime info: OS major version $linux_version, SELinux context $selinux_context on $hostname");
+            } else {
+                do_log ("INFO: runtime info: OS major version $linux_version on $hostname");
+            }   
             last SWITCH_OS; 
         };
     }