duplicity-backup.sh: Fix quotation issue
The if condition was not quoted correctly, leading to an error that a unary
operator is expected. This fixes it by quoting the condition correctly, which
is already done in the same way for most of the following if conditions.
Diff
1diff --git a/duplicity-backup.sh b/duplicity-backup.sh
2index 72094c92d32e6be9d7a354ccf599f7b8df998648..75a67a213fce89c7a063bc8a446723faaa860fb9 100755
3--- a/duplicity-backup.sh
4+++ b/duplicity-backup.sh
5@@ -417,7 +417,7 @@ include_exclude()
6 done
7 8 # Include/Exclude globbing filelist
9- if [ $INCEXCFILE != '' ]; then
10+ if [ "$INCEXCFILE" != '' ]; then
11 TMP=" --include-globbing-filelist ""'"$INCEXCFILE"'"
12 INCLUDE=$INCLUDE$TMP
13 fi