tests.sh: add a comment for broken older awk versions - sfeed_tests - sfeed tests and RSS and Atom files
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       ---
   DIR commit 334f398d5b4a8bef171eff5f5ed4af76d66c78c0
   DIR parent d2b1fd533cb76b9d553f5d331ccf46108410e2c9
  HTML Author: Hiltjo Posthuma <hiltjo@codemadness.org>
       Date:   Thu, 25 Dec 2025 14:27:16 +0100
       
       tests.sh: add a comment for broken older awk versions
       
       Noticed while testing on OpenBSD 3.8 (i386).
       Older awk versions may be broken (awk segfaults on some input files like:
       
               input/sfeed/realworld/nl.usembassy.gov.rss.xml
       
       (It contains many escaped TABs, there was probably some awk bug there).
       
       Diffstat:
         M tests.sh                            |       4 ++++
       
       1 file changed, 4 insertions(+), 0 deletions(-)
       ---
   DIR diff --git a/tests.sh b/tests.sh
       @@ -12,6 +12,10 @@ alias printf='/bin/printf'
        # fixup: expand to same amount of fields, if fields are added (TABS).
        # this is useful if the format changes and fields are added.
        fixup() {
       +        # NOTE: some older awk versions are broken (OpenBSD 3.8) use the below line.
       +        # instead of awk
       +        #cut -f 1-8 -d '        '
       +
                awk '
                BEGIN { OFS = FS = "\t"; }
                {