quote.hrx: use one-liners (follow up to #1380)

Author: glebm

spec/string_functions/quote.hrx

@@ -1,7 +1,5 @@
 <===> unquoted/input.scss
-a {
-  b: quote(c);
-}
+a {b: quote(c)}
 
 <===> unquoted/output.css
 a {
@@ -11,9 +9,7 @@ a {
 <===>
 ================================================================================
 <===> quoted_double/input.scss
-a {
-  b: quote("c");
-}
+a {b: quote("c")}
 
 <===> quoted_double/output.css
 a {
@@ -23,9 +19,7 @@ a {
 <===>
 ================================================================================
 <===> quoted_single/input.scss
-a {
-  b: quote('c');
-}
+a {b: quote('c')}
 
 <===> quoted_single/output.css
 a {
@@ -36,9 +30,7 @@ a {
 ================================================================================
 <===> quote_unquoted_quote/single/input.scss
 // See sass/libsass#2873
-a {
-  b: quote(unquote('"'));
-}
+a {b: quote(unquote('"'))}
 
 <===> quote_unquoted_quote/single/output.css
 a {
@@ -49,9 +41,7 @@ a {
 ================================================================================
 <===> quote_unquoted_quote/double/input.scss
 // See sass/libsass#2873
-a {
-  b: quote(unquote('"') + unquote("'"));
-}
+a {b: quote(unquote('"') + unquote("'"))}
 
 <===> quote_unquoted_quote/double/output.css
 a {
@@ -61,22 +51,21 @@ a {
 <===>
 ================================================================================
 <===> error/argument_type/input.scss
-a {
-  b: quote((1, 2, 3));
-}
+a {b: quote((1, 2, 3))}
 
 <===> error/argument_type/error
 Error: $string: 1, 2, 3 is not a string.
   ,
-2 |   b: quote((1, 2, 3));
-  |      ^^^^^^^^^^^^^^^^
+1 | a {b: quote((1, 2, 3))}
+  |       ^^^^^^^^^^^^^^^^
   '
-  input.scss 2:6  root stylesheet
+  input.scss 1:7  root stylesheet
 
 <===> error/argument_type/error-libsass
 Error: argument `$string` of `quote($string)` must be a string
-        on line 2:6 of input.scss, in function `quote`
-        from line 2:6 of input.scss
->>   b: quote((1, 2, 3));
+        on line 1:7 of input.scss, in function `quote`
+        from line 1:7 of input.scss
+>> a {b: quote((1, 2, 3))}
+
+   ------^
 
-   -----^