Fix function call parameter printer to omit extraneous leading comma

The output of all test cases was verified to be the same using diff.

diff --git a/glsl_parser_extras.cpp b/glsl_parser_extras.cpp
index 985d382..62eeb9c 100644 (file)
--- a/glsl_parser_extras.cpp
+++ b/glsl_parser_extras.cpp
@@ -326,7 +326,8 @@ ast_expression::print(void) const
       printf("( ");
 
       foreach_list_const (n, &this->expressions) {
-        printf(", ");
+        if (n != this->expressions.get_head())
+           printf(", ");
 
         ast_node *ast = exec_node_data(ast_node, n, link);
         ast->print();