Quote variables and backticks

Otherwise the script fails with spaces or asterisks in the directory path.
2016-07-05 07:33:43 +00:00 · 2016-07-05 07:33:43 +00:00 · 42debcfe3c
commit 42debcfe3c
parent 9f64fd6745
1 changed files with 1 additions and 1 deletions
--- a/manage.sh
+++ b/manage.sh
@ -1,6 +1,6 @@
 #!/bin/sh

-BASE_DIR=$(dirname `readlink -f $0`)
+BASE_DIR=$(dirname "`readlink -f "$0"`")
 PYTHONPATH=$BASE_DIR
 SEARX_DIR="$BASE_DIR/searx"
 ACTION=$1