[MDEP-651] Tweaks in warning message

Author: mthmulders

src/main/java/org/codehaus/plexus/archiver/AbstractUnArchiver.java

@@ -345,8 +345,8 @@ protected void extractFile( final File srcF, final File dir, final InputStream c
         {
             if ( f.exists() && !StringUtils.equalsIgnoreCase( entryName, canonicalDestPath ) )
             {
-                String message = String.format( "Archive entry %s and existing file %s names differ only by case."
-                        + " This may cause issues on case insensitive file systems.", entryName, canonicalDestPath );
+                String message = String.format( "Archive entry '%s' and existing file '%s' names differ only by case."
+                        + " This may cause issues on case-insensitive filesystems.", entryName, canonicalDestPath );
                 getLogger().warn( message );
                 if ( !isOverwrite() ) {
                     return;