PATCH: vcs_info: Fix a bug in vcs_info_lastmsg

[Frank Terbeck <ft@xxxxxxxxxxxxxxxxxxx>]

When a format starts with a dash, that triggers bad option errors
in some builtins. This should fix it.

Regards, Frank
---
 Functions/VCS_Info/vcs_info_lastmsg |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/Functions/VCS_Info/vcs_info_lastmsg b/Functions/VCS_Info/vcs_info_lastmsg
index fe33590..ddfaaf8 100644
--- a/Functions/VCS_Info/vcs_info_lastmsg
+++ b/Functions/VCS_Info/vcs_info_lastmsg
@@ -9,11 +9,11 @@ local -ix maxexports
 
 VCS_INFO_maxexports
 for i in {0..$((maxexports - 1))} ; do
-    printf '$vcs_info_msg_%d_: "' $i
+    printf -- '$vcs_info_msg_%d_: "' $i
     if zstyle -T ':vcs_info:formats:command:-all-' use-prompt-escapes ; then
-        print -nP ${(P)${:-vcs_info_msg_${i}_}}
+        print -nP -- ${(P)${:-vcs_info_msg_${i}_}}
     else
-        print -n ${(P)${:-vcs_info_msg_${i}_}}
+        print -n -- ${(P)${:-vcs_info_msg_${i}_}}
     fi
     printf '"\n'
 done
-- 
1.7.0