pgsql: Fix for make unportability

Fix for make unportability

88dad06b47eb80f699211c9b0b7a1c6d9016ad19 contains a make $(shell)
construct that apparently confuses older GNU make versions (possibly
because of the # inside the shell command?).  This construct, which
would allow # comments inside LINGUAS files, was adapted from gettext
recommendations, but we don't actually need that functionality, so
sidestep this whole issue by just using plain "cat".

In passing, make this code work with vpath.

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/58b4f366c0c4b3a5d65269f01150e4ec04cb20a2

Modified Files
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src/nls-global.mk | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)