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* Argp parsers enable translated long option names with "command-line
  option" as the message context.

Deprecated and removed features, and other changes affecting compatibility:

* Although malloc and related functions currently return pointers

error: patch failed: NEWS:25
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$(objpfx)tst-getopt_long_collision.out: $(tst_getopt_long_collision_mo) $(gen-locales)
CFLAGS-tst-getopt_long_collision.c += -DOBJPFX=\"$(objpfx)\"

error: patch failed: posix/Makefile:826
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