Avoid warnings from the clang compiler. (Dominique Pelle)
diff --git a/src/ex_cmds.c b/src/ex_cmds.c
index 20a39ff..f78bf96 100644
--- a/src/ex_cmds.c
+++ b/src/ex_cmds.c
@@ -2080,9 +2080,9 @@
 	/* Write the info: */
 	fprintf(fp_out, _("# This viminfo file was generated by Vim %s.\n"),
 							  VIM_VERSION_MEDIUM);
-	fprintf(fp_out, _("# You may edit it if you're careful!\n\n"));
+	fputs(_("# You may edit it if you're careful!\n\n"), fp_out);
 #ifdef FEAT_MBYTE
-	fprintf(fp_out, _("# Value of 'encoding' when this file was written\n"));
+	fputs(_("# Value of 'encoding' when this file was written\n"), fp_out);
 	fprintf(fp_out, "*encoding=%s\n\n", p_enc);
 #endif
 	write_viminfo_search_pattern(fp_out);
@@ -5422,7 +5422,7 @@
 {
     if (get_viminfo_parameter('/') != 0 && old_sub != NULL)
     {
-	fprintf(fp, _("\n# Last Substitute String:\n$"));
+	fputs(_("\n# Last Substitute String:\n$"), fp);
 	viminfo_writestring(fp, old_sub);
     }
 }