fix small issue in the possible word commit in annotations of commit

compile

@@ -6,7 +6,7 @@ cp src/config/start.tw.proto start.tw.tmp
 find src -name '*.tw' -print >>start.tw.tmp
 mv start.tw.tmp src/config/start.tw
 
-HASH=`git log -n1 |grep commit | sed 's/commit //'`
+HASH=`git log -n1 |grep -m1 commit | sed 's/commit //'`
 
 ./devTools/tweeGo/tweego -o bin/FC_pregmod_$HASH.html src/config/start.tw