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	Shellcheck 2ff fixes - farbfeld - suckless image format with conversion tools
	git clone git://git.suckless.org/farbfeld
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	---
	commit 1f8903d1689e5f796fbe227587081d28f864cb07
	parent 3fa775e1dfd5dc38648f88c2f385be1f0fe45605
	Author: FRIGN <[email protected]>
	Date: Wed, 7 Sep 2016 23:10:05 +0200

	Shellcheck 2ff fixes

	I was inspired by the current discussion on dev@ to use shellcheck to
	check my scripts and thought it might be a good choice to do this for
	the 2ff script.
	Not much had to be changed, because I was careful writing it, but still
	it won't hurt to but $TMP in double quotes.

	Diffstat:
	M 2ff \| 12 ++++++------

	1 file changed, 6 insertions(+), 6 deletions(-)
	---
	diff --git a/2ff b/2ff
	@@ -5,17 +5,17 @@ if [ "$#" -ne 0 ]; then
	fi

	TMP=$(mktemp)
	-cat > $TMP;
	+cat > "$TMP";

	-FORMAT=$(file -ib $TMP \| cut -d ";" -f 1);
	+FORMAT=$(file -ib "$TMP" \| cut -d ";" -f 1);

	case "$FORMAT" in
	- image/png) png2ff < $TMP; ret=$? ;;
	- image/jpeg) jpg2ff < $TMP; ret=$? ;;
	- *) convert $TMP png:- 2>/dev/null \| png2ff 2>/dev/null; ret=$? ;;
	+ image/png) png2ff < "$TMP"; ret=$? ;;
	+ image/jpeg) jpg2ff < "$TMP"; ret=$? ;;
	+ *) convert "$TMP" png:- 2>/dev/null \| png2ff 2>/dev/null; ret=$? ;;
	esac

	-rm $TMP;
	+rm "$TMP";

	if [ $ret -ne 0 ]; then
	printf "%s: failed to convert %s\n" "$0" "$FORMAT" >&2;