The default value of #f led to ("..." . #f) being passed further down as an
entry point. That is not an issue for command line invocation, since in that
code path '() was already used as a default value, but it broke docker system
test with the following error:
building /gnu/store/dll8jj6h5pfgf6ya9skk1g1546smwbib-docker-pack.tar.gz.drv...
tar: Removing leading `/' from member names
Backtrace:
6 (primitive-load "/gnu/store/g8hqzccfvn4mkm41jqs65c27gs7?")
In ./guix/docker.scm:
268:6 5 (build-docker-image "/gnu/store/zi2f5dfdrhviinm6jxp3cj?" ?)
In ice-9/ports.scm:
433:17 4 (call-with-output-file _ _ #:binary _ #:encoding _)
476:4 3 (_ _)
In ./guix/docker.scm:
270:21 2 (_)
123:40 1 (config "1996ead589ab366473d935c4d5bd0c38b998f3b299847?" ?)
In unknown file:
0 (list->vector ("/gnu/store/1pvqd30qi1aigjdf7s7l8v7?" . #))
ERROR: In procedure list->vector:
In procedure vector: Wrong type argument in position 1: ("/gnu/store/1pvqd30qi1aigjdf7s7l8v7wpvrrhfkj-profile/bin/guile" . #f)
note: keeping build directory `/tmp/guix-build-docker-pack.tar.gz.drv-16'
builder for `/gnu/store/dll8jj6h5pfgf6ya9skk1g1546smwbib-docker-pack.tar.gz.drv' failed with exit code 1
build of /gnu/store/dll8jj6h5pfgf6ya9skk1g1546smwbib-docker-pack.tar.gz.drv failed
View build log at '/var/log/guix/drvs/dl/l8jj6h5pfgf6ya9skk1g1546smwbib-docker-pack.tar.gz.drv.gz'.
cannot build derivation `/gnu/store/dq9qk1ba0f07572m8ck3xws28x1b3rif-docker-test.drv': 1 dependencies couldn't be built
guix build: error: build of `/gnu/store/dq9qk1ba0f07572m8ck3xws28x1b3rif-docker-test.drv' failed
make: *** [Makefile:7044: check-system] Error 1
Breakage was introduced in 7d5168a2af.
* guix/scripts/pack.scm (docker-image)[entry-point-argument]: Default to '().
Change-Id: If5fc1f8bcb0981df11409636e71f2ca91b05612f
31e736dac2