* file.c (rb_file_join): separator is appended by array length - 1

  times. patched by Benoit Daloze [ruby-core:41901] [Bug #5841]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@34215 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/file.c b/file.c
index fb62c51d7a..15d594a059 100644
--- a/file.c
+++ b/file.c
@@ -3825,7 +3825,7 @@ rb_file_join(VALUE ary, VALUE sep)
     }
     if (!NIL_P(sep)) {
 	StringValue(sep);
-	len += RSTRING_LEN(sep) * RARRAY_LEN(ary) - 1;
+	len += RSTRING_LEN(sep) * (RARRAY_LEN(ary) - 1);
     }
     result = rb_str_buf_new(len);
     OBJ_INFECT(result, ary);