runtimes/charliecloud: de-fuzz alpine test patch
--- a/test/chtest/Build 2018-09-04 12:15:54.000000000 -0700
-+++ b/test/chtest/Build 2018-10-24 08:51:20.000000000 -0700
-@@ -16,10 +16,11 @@
++++ b/test/chtest/Build 2018-10-24 20:48:27.000000000 -0700
+@@ -16,12 +16,13 @@
set -ex
-WORKDIR=$3
+WORKDIR=$4
MIRROR=http://dl-cdn.alpinelinux.org/alpine/v3.6
- APK_TOOLS=apk-tools-static-2.7.5-r0.apk
+-APK_TOOLS=apk-tools-static-2.7.5-r0.apk
++APK_TOOLS=apk-tools-static-2.7.6-r0.apk
IMG="$WORKDIR/img"
+
+ cd $WORKDIR
## Bootstrap base Alpine Linux.
