* tests/gpgscm/lib.scm (echo): Move...
* tests/gpgscm/tests.scm (echo): ... here.
(info, error, skip): And use echo here.
(file-exists?): New function.
(tr:spawn): Check that source exists and if the sink has been created.
(tr:call-with-content): Hand in optional arguments.
Signed-off-by: Justus Winter <justus@g10code.com>