luci-base:Turn off pattern matching when generating distversion

Otherwize the distrevision may be displayed twice if it contains some special matching patterns.(For example I am using "git-$hash" in my own OpenWrt branch.)
Signed-off-by: Chuanhong Guo <gch981213@gmail.com>

diff --git a/modules/luci-base/src/mkversion.sh b/modules/luci-base/src/mkversion.sh
index e3ef974..e2d02c1 100755 (executable)
--- a/modules/luci-base/src/mkversion.sh
+++ b/modules/luci-base/src/mkversion.sh
@@ -10,7 +10,7 @@ if pcall(dofile, "/etc/openwrt_release") and _G.DISTRIB_DESCRIPTION then
        distversion = _G.DISTRIB_DESCRIPTION
        if _G.DISTRIB_REVISION then
                distrevision = _G.DISTRIB_REVISION
-               if not distversion:find(distrevision) then
+               if not distversion:find(distrevision,1,true) then
                        distversion = distversion .. " " .. distrevision
                end
        end