Fix bug with inconsistent handling of stray ","

[Paul Eggert]

I installed this:

2002-12-30  Paul Eggert  <address@hidden>

        * src/scan-gram.l (<INITIAL,SC_AFTER_IDENTIFIER,SC_PRE_CODE>","):
        Moved here from...
        (<INITIAL>","): Here.  This causes stray "," to be treated
        more uniformly.

--- src/scan-gram.l     30 Dec 2002 22:40:52 -0000      1.52
+++ src/scan-gram.l     30 Dec 2002 23:38:20 -0000      1.53
@@ -154,10 +154,15 @@ splice     (\\[ \f\t\v]*\n)*
 <INITIAL,SC_AFTER_IDENTIFIER,SC_PRE_CODE>
 {
   [ \f\n\t\v]  ;
+  ","         warn_at (*loc, _("stray `,' treated as white space"));
 
   /* Comments. */
-  "/*"         token_start = loc->start; context_state = YY_START; BEGIN 
SC_YACC_COMMENT;
   "//".*       ;
+  "/*" {
+    token_start = loc->start;
+    context_state = YY_START;
+    BEGIN SC_YACC_COMMENT;
+  }
 
   /* #line directives are not documented, and may be withdrawn or
      modified in future versions of Bison.  */
@@ -214,10 +219,6 @@ splice      (\\[ \f\t\v]*\n)*
   "="                     return EQUAL;
   "|"                     rule_length = 0; return PIPE;
   ";"                     return SEMICOLON;
-
-  "," {
-    warn_at (*loc, _("stray `,' treated as white space"));
-  }
 
   {id} {
     val->symbol = symbol_get (yytext, *loc);