fixed syntax parsing for properties with variables

Syntaxes/Ruby Sass.tmLanguage

@@ -467,7 +467,7 @@
 		</dict>
 		<dict>
 			<key>begin</key>
-			<string>^[ \t]+\b(align|azimuth|background-attachment|background-color|background-image|background-position|background-repeat|background|border-bottom-color|border-bottom-style|border-bottom-width|border-bottom|border-collapse|border-color|border-left-color|border-left-style|border-left-width|border-left|border-right-color|border-right-style|border-right-width|border-right|border-spacing|border-style|border-top-color|border-top-style|border-top-width|border-top|border-width|border|bottom|caption-side|clear|clip|color|content|counter-increment|counter-reset|cue-after|cue-before|cue|cursor|decoration|direction|display|elevation|empty-cells|family|float|font-family|font-size-adjust|font-size|font-stretch|font-style|font-variant|font-weight|font|height|image|indent|left|letter-spacing|line-height|list-style-image|list-style-position|list-style-type|list-style|margin-bottom|margin-left|margin-right|margin-top|marker-offset|margin|marks|max-height|max-width|min-height|min-width|-moz-border-radius|opacity|orphans|outline-color|outline-style|outline-width|outline|overflow(-[xy])?|padding-bottom|padding-left|padding-right|padding-top|padding|page-break-after|page-break-before|page-break-inside|page|pause-after|pause-before|pause|pitch-range|pitch|play-during|position|quotes|repeat|richness|right|shadow|size|speak-header|speak-numeral|speak-punctuation|speech-rate|speak|stress|style|table-layout|text|text-align|text-decoration|text-indent|text-shadow|text-transform|top|transform|unicode-bidi|vertical-align|visibility|voice-family|volume|weight|white-space|widows|width|word-spacing|z-index)\b(:)</string>
+			<string>^[ \t]+\b(align|azimuth|background-attachment|background-color|background-image|background-position|background-repeat|background|border-bottom-color|border-bottom-style|border-bottom-width|border-bottom|border-collapse|border-color|border-left-color|border-left-style|border-left-width|border-left|border-right-color|border-right-style|border-right-width|border-right|border-spacing|border-style|border-top-color|border-top-style|border-top-width|border-top|border-width|border|bottom|caption-side|clear|clip|color|content|counter-increment|counter-reset|cue-after|cue-before|cue|cursor|decoration|direction|display|elevation|empty-cells|family|float|font-family|font-size-adjust|font-size|font-stretch|font-style|font-variant|font-weight|font|height|image|indent|left|letter-spacing|line-height|list-style-image|list-style-position|list-style-type|list-style|margin-bottom|margin-left|margin-right|margin-top|marker-offset|margin|marks|max-height|max-width|min-height|min-width|-moz-border-radius|opacity|orphans|outline-color|outline-style|outline-width|outline|overflow(-[xy])?|padding-bottom|padding-left|padding-right|padding-top|padding|page-break-after|page-break-before|page-break-inside|page|pause-after|pause-before|pause|pitch-range|pitch|play-during|position|quotes|repeat|richness|right|shadow|size|speak-header|speak-numeral|speak-punctuation|speech-rate|speak|stress|style|table-layout|text|text-align|text-decoration|text-indent|text-shadow|text-transform|top|transform|unicode-bidi|vertical-align|visibility|voice-family|volume|weight|white-space|widows|width|word-spacing|z-index)\b(:|=)</string>
 			<key>beginCaptures</key>
 			<dict>
 				<key>1</key>