string.c: update rdoc of rb_str_slice_bang()

* string.c (rb_str_slice_bang): [DOC] update return value against
  a fixnum, which has changed because of M17N.  [fix GH-631]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46376 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/string.c b/string.c
index 15e6bcd623..0e589243af 100644
--- a/string.c
+++ b/string.c
@@ -3782,7 +3782,7 @@ rb_str_insert(VALUE str, VALUE idx, VALUE str2)
 
 /*
  *  call-seq:
- *     str.slice!(fixnum)           -> fixnum or nil
+ *     str.slice!(fixnum)           -> new_str or nil
  *     str.slice!(fixnum, fixnum)   -> new_str or nil
  *     str.slice!(range)            -> new_str or nil
  *     str.slice!(regexp)           -> new_str or nil