build,json: fix build failure in case no data is found
Only collect arch_packages if actually generating any output.
Fixes: commit f09b9319
("build,json: store arch_packages in profiles.json"(
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Paul Spooren <mail@aparcar.org>
master
parent
a175bc8f36
commit
3b0f698760
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