lib-gpg: allow tests with the GPGSM prereq first

When the 'GPG' prereq is lazily tested, `mkdir "$GNUPGHOME"` could
fail if the "$GNUPGHOME" directory already exists. This can happen if
the 'GPGSM' prereq has been lazily tested before as it uses
`mkdir -p "$GNUPGHOME"`.

To allow the GPGSM prereq to appear before the GPG prereq in some
test scripts, let's use `mkdir -p "$GNUPGHOME"` when the 'GPG' prereq
is lazily tested too.

This will be useful in a following commit.

Signed-off-by: Christian Couder <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: chriscool

t/lib-gpg.sh

@@ -38,7 +38,7 @@ test_lazy_prereq GPG '
 		# To export ownertrust:
 		#	gpg --homedir /tmp/gpghome --export-ownertrust \
 		#		> lib-gpg/ownertrust
-		mkdir "$GNUPGHOME" &&
+		mkdir -p "$GNUPGHOME" &&
 		chmod 0700 "$GNUPGHOME" &&
 		(gpgconf --kill all || : ) &&
 		gpg --homedir "${GNUPGHOME}" --import \