Re: [PATCH 1/2] test-lib: show missing prereq summary

Ævar Arnfjörð Bjarmason [off-list ref] writes:

quoted

+if test -n "$missing_prereq"
+then
+	unique_missing_prereq=$(
+		echo $missing_prereq |
+		tr -s "," "\n" |
+		grep -v '^$' |
+		sort -u |
+		paste -s -d ',')

What is paste? Some out-of-tree debugging utility?

https://pubs.opengroup.org/onlinepubs/9699919799/utilities/paste.html

Don't feel bad for not knowing it.  I usually do not use cut or paste
myself and I had to look it up the other day while reviewing the RFC
phase of this series.

I am not sure '\n' is a good idea from portability perspective.  I
thought I wrote '\012' in the illustration in my review?