Grunt RTL CSS: swap-dashicons-left-right-arrows in rtlcss:properties expects double-quoted content strings in CSS. It doesn't swap single-quoted values.

Props Ankit K Gupta, yoavf, netweb.
Fixes #33786.

Built from https://develop.svn.wordpress.org/trunk@34011


git-svn-id: http://core.svn.wordpress.org/trunk@33980 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/css/forms.css

@@ -134,13 +134,13 @@ input[type="radio"]:checked:before {
 }
 
 input[type="checkbox"]:checked:before {
-	content: '\f147';
+	content: "\f147";
 	margin: -3px 0 0 -4px;
 	color: #1e8cbe;
 }
 
 input[type="radio"]:checked:before {
-	content: '\2022';
+	content: "\2022";
 	text-indent: -9999px;
 	-webkit-border-radius: 50px;
 	border-radius: 50px;
@@ -241,7 +241,7 @@ textarea[readonly] {
 }
 
 .form-table .form-required.form-invalid td:after {
-	content: '\f534';
+	content: "\f534";
 	font: normal 20px/1 dashicons;
 	color: #dc3232;
 	margin-left: -25px;
@@ -428,7 +428,7 @@ fieldset label,
 }
 
 #misc-publishing-actions label[for="post_status"]:before {
-	content: '\f173';
+	content: "\f173";
 	display: inline-block;
 	font: normal 20px/1 dashicons;
 	speak: none;
@@ -786,7 +786,7 @@ table.form-table td .updated p {
 }
 
 .pressthis-bookmarklet:after {
-	content: '';
+	content: "";
 	width: 70%;
 	height: 55%;
 	z-index: -1;
@@ -818,7 +818,7 @@ table.form-table td .updated p {
 .pressthis-bookmarklet span:before {
 	color: #777;
 	font: normal 20px/1 dashicons;
-	content:'\f157';
+	content: "\f157";
 	position: relative;
 	display: inline-block;
 	top: 4px;