Set 'nullglob' to ignore nonmatching patterns

For example override.stretch.extra.* does not exist. Not ignoring this
pattern results in an output file containing an asterisk.

diff --git a/config/debian/dinstall.functions b/config/debian/dinstall.functions
index e50a64c85d983fe3f930d561738689e40973b4ae..f7510a3bef7a422616cc7a2c86e2036e08e9f1cf 100644 (file)
--- a/config/debian/dinstall.functions
+++ b/config/debian/dinstall.functions
@@ -228,11 +228,14 @@ function mkmaintainers() {
 function copyoverrides() {
     log 'Copying override files into public view ...'
 
-    for ofile in ${overridedir}/override.{squeeze,wheezy,jessie,stretch,sid}.{,extra.}{main,contrib,non-free}*; do
-        bname=${ofile##*/}
-        gzip -9cv --rsyncable ${ofile} > ${indices}/${bname}.gz
-        chmod g+w ${indices}/${bname}.gz
-    done
+    (
+        shopt -s nullglob
+        for ofile in ${overridedir}/override.{squeeze,wheezy,jessie,stretch,sid}.{,extra.}{main,contrib,non-free}*; do
+            bname=${ofile##*/}
+            gzip -9cv --rsyncable ${ofile} > ${indices}/${bname}.gz
+            chmod g+w ${indices}/${bname}.gz
+        done
+    )
 }
 
 function mkfilesindices() {