Bump version (also fix line endings the grammar).

glslang/Include/revision.h

 // This header is generated by the make-revision script.
 
-#define GLSLANG_PATCH_LEVEL 3559
+#define GLSLANG_PATCH_LEVEL 3667

glslang/MachineIndependent/glslang.m4

@@ -264,7 +264,7 @@ GLSLANG_WEB_EXCLUDE_OFF
 %token <lex> AND_OP OR_OP XOR_OP MUL_ASSIGN DIV_ASSIGN ADD_ASSIGN
 %token <lex> MOD_ASSIGN LEFT_ASSIGN RIGHT_ASSIGN AND_ASSIGN XOR_ASSIGN OR_ASSIGN
 %token <lex> SUB_ASSIGN
-%token <lex> STRING_LITERAL
+%token <lex> STRING_LITERAL
 
 %token <lex> LEFT_PAREN RIGHT_PAREN LEFT_BRACKET RIGHT_BRACKET LEFT_BRACE RIGHT_BRACE DOT
 %token <lex> COMMA COLON EQUAL SEMICOLON BANG DASH TILDE PLUS STAR SLASH PERCENT
@@ -380,9 +380,9 @@ primary_expression
         $$ = parseContext.intermediate.addConstantUnion($1.b, $1.loc, true);
     }
 GLSLANG_WEB_EXCLUDE_ON
-    | STRING_LITERAL {
-        $$ = parseContext.intermediate.addConstantUnion($1.string, $1.loc, true);
-    }
+    | STRING_LITERAL {
+        $$ = parseContext.intermediate.addConstantUnion($1.string, $1.loc, true);
+    }
     | INT32CONSTANT {
         parseContext.explicitInt32Check($1.loc, "32-bit signed literal");
         $$ = parseContext.intermediate.addConstantUnion($1.i, $1.loc, true);