TC from dt/plugins/styles is broken because of semicolon fixing

[Garry Yao]

Extra semicolons get introduced due to the following codes:

for ( var style in stylesDef )
 stylesText += style + ':' + stylesDef[ style ] + ';';

[Frederico Caldeira Knabben]

I know it's a small repetition, but for this simple case, let's just try having the code simpler, amending just the following:

stylesText += ( style + ':' + stylesDef[ style ] ).replace( semicolonFixRegex, ';' );  

[Garry Yao]

Fixed with [4355].