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Paul Eggert authored
In http://lists.gnu.org/archive/html/bug-autoconf/2015-12/msg00000.html Pavel Raiskup reports that ${1+"$@"} runs afoul of a bug in /bin/sh (derived from ksh 93t+ 2010-03-05). ${1+"$@"} works around an ancient bug in long-dead shells, so remove the workaround. * admin/check-doc-strings, configure.ac, lib-src/rcs2log: Use plain "$@" rather than ${1+"$@"}.
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