parse.y: fix yyerror message

* parse.y (parser_yyerror): show the error line even if the error
  is at the end.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57073 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 3 deletions

diff --git a/parse.y b/parse.y
index 8162086033..ab4f8ae233 100644
--- a/parse.y
+++ b/parse.y
@@ -5260,11 +5260,10 @@ parser_yyerror(struct parser_params *parser, const char *msg)
     int i;
 
     p = lex_p;
-    while (lex_pbeg <= p) {
-	if (*p == '\n') break;
+    while (lex_pbeg < p) {
+	if (*(p-1) == '\n') break;
 	p--;
     }
-    p++;
 
     pe = lex_p;
     while (pe < lex_pend) {