Change function signature of grok_bslash_o

The previous return value where NULL meant OK is outside-the-norm.

1 files changed, 3 insertions, 2 deletions

diff --git a/toke.c b/toke.c
index 3ef1d3bfe9..455f977c01 100644
--- a/toke.c
+++ b/toke.c
@@ -2883,10 +2883,11 @@ S_scan_const(pTHX_ char *start)
 	    case 'o':
 		{
 		    STRLEN len;
+		    const char* error;
 
-		    char* error = grok_bslash_o(s, &uv, &len, 1);
+		    bool valid = grok_bslash_o(s, &uv, &len, &error, 1);
 		    s += len;
-		    if (error) {
+		    if (! valid) {
 			yyerror(error);
 			continue;
 		    }