autogen/libopts tar.gz does not build reproducibly
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bkorb
When working on reproducible builds for openSUSE, I noticed that the autogen package could not be built reproducibly, because the libopts-41.1.16.tar.gz contained in there, differed for each build.
The attached patch fixes that.
See https://reproducible-builds.org/ for why this matters.
Patch tweaked (80 col max) and applied. Pending next release
fixed