entrypoint.sh: Don't require output filename to be escaped

Note that the input filenames still have to be escaped
(to support the use of "-" options on the command line).

Signed-off-by: David A. Wheeler <dwheeler@dwheeler.com>

entrypoint.sh

@@ -1,7 +1,7 @@
 #!/bin/sh -l
-# $1 arguments
+# $1 arguments. BEWARE: Some filenames may need to be escaped.
 # $2 output filename
 
-flawfinder $1 > $2
+flawfinder $1 > "$2"
 
 echo "Executed with success."