Use new name 'is_utf8_invariant_string' in core

This changes the places in the core to use the clearer synonym added by
the previous commit.  It also changes one place that hand-rolled its own
code to use this function instead.

1 files changed, 1 insertions, 1 deletions

diff --git a/mg.c b/mg.c
index 0a93cb86cf..874933f6ff 100644
--- a/mg.c
+++ b/mg.c
@@ -758,7 +758,7 @@ S_fixup_errno_string(pTHX_ SV* sv)
          * error message text.  (If it turns out to be necessary, we could also
          * keep track if the current LC_MESSAGES locale is UTF-8) */
         if (! IN_BYTES  /* respect 'use bytes' */
-            && ! is_invariant_string((U8*) SvPVX_const(sv), SvCUR(sv))
+            && ! is_utf8_invariant_string((U8*) SvPVX_const(sv), SvCUR(sv))
             && is_utf8_string((U8*) SvPVX_const(sv), SvCUR(sv)))
         {
             SvUTF8_on(sv);