Fix bump script clobberage.

From-SVN: r22097
diff --git a/gcc/version.c b/gcc/version.c
index cf10254..513c54b 100644
--- a/gcc/version.c
+++ b/gcc/version.c
@@ -1 +1 @@
-char *version_string = "egcs-2.91.56 19980829 (egcs-1.1 19980830
+char *version_string = "egcs-2.91.56 19980829 (egcs-1.1 pre-release)";