Stop collecting logs by default
Stop collecting logs by default

Today Make builds a tar.gz file with all the build logs by default, but
this is not always necessary/useful. Users that want to keep the same
behavior can use 'make collect' in addition to the normal build + test
steps from now on.

Signed-off-by: Matheus Castanho <531577e2ea6a1eef9cdabce582a2b074021a1180@linux.ibm.com>

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