bcd64c10d2b65ac12beecfc3e006c30946d5817a

 1diff --git a/.travis.yml b/.travis.yml
 2index 60ea2db7aba04f560eb63217c0a032a912dd530e..875f889ccbe0dea300c8a7efec0f00e750169a23 100644
 3--- a/.travis.yml
 4+++ b/.travis.yml
 5@@ -11,7 +11,7 @@ addons:
 6     - shellcheck
 7 
 8 script:
 9-  - shellcheck duplicity-backup.sh
10+  - shellcheck -e SC2153 duplicity-backup.sh
11   - shellcheck -e SC2034 duplicity-backup.conf.example
12 
13 matrix:
14diff --git a/duplicity-backup.sh b/duplicity-backup.sh
15index a194837dba6e914ee1157582bc19f00827931fc7..cc28ebbdd6ee31c2241bb80dc0e2ff851418f163 100755
16--- a/duplicity-backup.sh
17+++ b/duplicity-backup.sh
18@@ -432,7 +432,7 @@ get_source_file_size()
19 
20   for include in "${DUINCLIST[@]}"; do
21       echo -e "${DUEXCLIST}" | \
22-      du -hs ${DUEXCFLAG} ${include} | \
23+      du -hs ${DUEXCFLAG} "${include}" | \
24       awk '{ FS="\t"; $0=$0; print $1"\t"$2 }' \
25       >> "${LOGFILE}"
26   done
27@@ -683,7 +683,8 @@ backup_this_script()
28   fi
29 
30   if [ ! -z "${GPG_ENC_KEY}" -a ! -z "${GPG_SIGN_KEY}" ]; then
31-    export GPG_TTY=$(tty)
32+    GPG_TTY=$(tty)
33+    export GPG_TTY
34     if [ "${GPG_ENC_KEY}" = "${GPG_SIGN_KEY}" ]; then
35       gpg -a --export-secret-keys "${KEYRING}" "${GPG_ENC_KEY}" > "${TMPDIR}"/duplicity-backup-encryption-and-sign-secret.key.txt
36     else