fix XXX comment for regcomp.c:S_reg

It actually does do the right thing: /(?(R0))/ and /(?(R00))/ both fall
through to give an appropriate error 'Switch condition not recognized'

1 files changed, 1 insertions, 1 deletions

diff --git a/regcomp.c b/regcomp.c
index 4cbcf36d3e..998d0c3c57 100644
--- a/regcomp.c
+++ b/regcomp.c
@@ -10318,7 +10318,7 @@ S_reg(pTHX_ RExC_state_t *pRExC_state, I32 paren, I32 *flagp,U32 depth)
                             parno = (I32)uv;
                             RExC_parse = (char*)endptr;
                         }
-                        /* XXX else what? */
+                        /* else "Switch condition not recognized" below */
 		    } else if (RExC_parse[0] == '&') {
 		        SV *sv_dat;
 		        RExC_parse++;