Fix dart Sass compatibility for subtract (#29763)

ysds · XhmikosR · commit b07b6f743ca0 · 2019-11-28T14:59:49.000+02:00
diff --git a/scss/_functions.scss b/scss/_functions.scss
@@ -130,5 +130,5 @@
     @return $value1 - $value2;
   }
 
-  @return if($return-calc == true, calc(#{$value1} - #{$value2}), #{$value1} - #{$value2});
+  @return if($return-calc == true, calc(#{$value1} - #{$value2}), $value1 + unquote(" - ") + $value2);
 }

Original file line number	Diff line number	Diff line change
`@@ -130,5 +130,5 @@`
`130`	`130`	`@return $value1 - $value2;`
`131`	`131`	`}`
`132`	`132`
`133`		`- @return if($return-calc == true, calc(#{$value1} - #{$value2}), #{$value1} - #{$value2});`
	`133`	`+ @return if($return-calc == true, calc(#{$value1} - #{$value2}), $value1 + unquote(" - ") + $value2);`
`134`	`134`	`}`