=== modified file 'common.zsh'
--- common.zsh	2017-12-13 01:31:02 +0000
+++ common.zsh	2017-12-13 01:29:09 +0000
@@ -251,10 +251,10 @@
 	(($# < 3)) || die "usage: $0 <filename> [<variable>]"
 	[[ -d $1 ]] || die "$0: ${(qqq)1} does not exist or not a directory"
 	local out
-	out=$(tar -cvp -C $1 --mtime='1970-01-01 00:00:00' . | sha256sum -)
+	out=$(tar -cvp -C $1 --mtime=1970-01-01 . | sha256sum -)
 	(( ${(j.|.)pipestatus} )) \
 		&& die "$0: Failed to checksum directory: ${(qqq)1}"
-	__check_deps__+='if { pipeline -d { printf "%s\n" '${(qqq)out}'} fdmove 3 1 pipeline -d { tar -cvp "--mtime=1970-01-01 00:00:00" -C '${(qqq)1}$' . } sha256sum -c /proc/self/fd/3 }\n'
+	__check_deps__+='if { pipeline -d { printf "%s\n" '${(qqq)out}'} fdmove 3 1 pipeline -d { tar -cvp --mtime=1970-01-01 -C '${(qqq)1}$' . } sha256sum -c /proc/self/fd/3 }\n'
 	(($# == 2)) && setvar $2 "${out%% *}"
 }