c_locale.cc (facet::_S_create_c_locale): Fix warning.

	* config/locale/dragonfly/c_locale.cc (facet::_S_create_c_locale):
	Fix warning.

From-SVN: r210716

libstdc++-v3/ChangeLog

@@ -7,6 +7,9 @@
 	* testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc:
 	Likewise.
 
+	* config/locale/dragonfly/c_locale.cc (facet::_S_create_c_locale):
+	Fix warning.
+
 2014-05-21  John Marino  <gnugcc@marino.st>
 
 	* acinclude.m4 (*-*-dragonfly*): New target.

libstdc++-v3/config/locale/dragonfly/c_locale.cc

@@ -229,7 +229,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
     char localspec[size__s + 6 + 1];
     
     if (__s == NULL) {
-       localspec[0] = NULL;
+       localspec[0] = '\0';
     } else {
        strcpy (localspec, __s);
        char * pch = strchr (localspec, '@');