Fix a string length error in [file join] from 3b317b1

Signed-off-by: Steve Bennett <steveb@workware.net.au>

1 files changed, 1 insertions, 0 deletions

diff --git a/jim-file.c b/jim-file.c
index 8e3d9d6..5c962ac 100644
--- a/jim-file.c
+++ b/jim-file.c
@@ -288,6 +288,7 @@ static int file_cmd_join(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
         else if (part[0] == '.') {
             if (part[1] == '/') {
                 part += 2;
+                len -= 2;
             }
             else if (part[1] == 0 && last != newname) {
                 /* Adding '.' to an existing path does nothing */