Merge pull request scopatz#308 from G-Rath/patch-6

fix(php): only highlight the spaces that are trailing

php.nanorc

@@ -37,6 +37,6 @@ color red "(<\?(php)?|\?>)"
 # General HTML
 color red start="\?>" end="<\?(php|=)?"
 # trailing whitespace
-color ,green "[^[:space:]]{1}[[:space:]]+$"
+color ,green "[[:space:]]+$"
 # multi-line comments
 color brightyellow start="/\*" end="\*/"