[PATCH] generic/581: remove extra escape character from awk line

[Luis Henriques <lhenriques@suse.de>]

Checking the keys in /proc/key-users is buggy, as there's an extra '\'
character: in '{print \$4}' the '$4' shouldn't be escaped otherwise the
'awk' command will fail.  This has passed unnoticed because the output
is sent to '_user_do' function and the result assigned to a variable.

While there, replace 'awk' by $AWK_PROG.

Signed-off-by: Luis Henriques <lhenriques@suse.de>
---
 tests/generic/581 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Hi!

Please note that I'm not an 'awk' expert and I may be wrong!  But if I do
see an error if I run something like:

$ awk '/^[[:space:]]*1000:/{print \$4}' /proc/key-users 
awk: cmd. line:1: /^[[:space:]]*1000:/{print \$4}
awk: cmd. line:1:                            ^ backslash not last character on line

But maybe this depends on the awk implementation, although I've tried a few.

diff --git a/tests/generic/581 b/tests/generic/581
index cabc7e1c69ab..1a4b571d40ce 100755
--- a/tests/generic/581
+++ b/tests/generic/581
@@ -92,7 +92,7 @@ while grep -E -q '^[0-9a-f]+ [^ ]*i[^ ]*' /proc/keys; do
 done
 
 # Set the user key quota to the fsgqa user's current number of keys plus 5.
-orig_keys=$(_user_do "awk '/^[[:space:]]*$(id -u fsgqa):/{print \$4}' /proc/key-users | cut -d/ -f1")
+orig_keys=$(_user_do "$AWK_PROG '/^[[:space:]]*$(id -u fsgqa):/{print $4}' /proc/key-users | cut -d/ -f1")
 : ${orig_keys:=0}
 echo "orig_keys=$orig_keys" >> $seqres.full
 orig_maxkeys=$(</proc/sys/kernel/keys/maxkeys)