test suite: gnupg: Do not reset DGIT_TEST_REAL_GPG_AGENT

Otherwise it might end up pointing to the wrapper, if we run the setup
twice for some reason (for example, in an adt run).

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/tests/setup/gnupg b/tests/setup/gnupg
index 6100bf575fe7e8bfaf2d1b3d3a892d32544cd6c5..43a5c96db91558766c91658f80906567b99484ea 100755 (executable)
--- a/tests/setup/gnupg
+++ b/tests/setup/gnupg
@@ -14,6 +14,7 @@ END
 #debug-all
 
 setup='
+       : ${DGIT_TEST_REAL_GPG_AGENT:=$(type -p gpg-agent)}
        export DGIT_TEST_REAL_GPG_AGENT=$(type -p gpg-agent)
        export DGIT_STUNT_AGENT=$troot/tstunt/gpg-agent
        export GNUPGHOME