build: force numerical comparison in version.bash

Fixes #2436.

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/5576075

diff --git a/src/version.bash b/src/version.bash
index 792814bac7bae48582fe7559a44499612e6bc126..b2dabe4f7d91cbb36093a0793d546d8d247fc27f 100755 (executable)
--- a/src/version.bash
+++ b/src/version.bash
@@ -36,7 +36,7 @@ TAG=$(hg tags |
        grep $BRANCH |
        sed 's/:.*//' |
        sort -rn -k2 |
-       awk -v ver=$VERSION '$2 <= ver && $1~/^(release|weekly)\./ {print $1}' |
+       awk -v ver=$VERSION '$2+0 <= ver+0 && $1~/^(release|weekly)\./ {print $1}' |
        sed -n 1p)
 
 if [ "$TAG" != "" ]; then