[PATCH 3/6] GIT-VERSION-GEN: Use sed instead of expr

["lufia via GitGitGadget" <gitgitgadget@xxxxxxxxx>]

From: lufia <lufia@xxxxxxxxx>

Plan 9 don't have expr(1).

Signed-off-by: lufia <lufia@xxxxxxxxx>
---
 GIT-VERSION-GEN | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/GIT-VERSION-GEN b/GIT-VERSION-GEN
index a0766f64ed..754d4486f5 100755
--- a/GIT-VERSION-GEN
+++ b/GIT-VERSION-GEN
@@ -26,7 +26,7 @@ else
 	VN="$DEF_VER"
 fi
 
-VN=$(expr "$VN" : v*'\(.*\)')
+VN=$(echo "$VN" | sed 's/^v*//')
 
 if test -r $GVF
 then
-- 
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