(check-texinfo): Check for uses of non-zero. I prefer to spell it `nonzero'.

diff --git a/doc/Makefile.am b/doc/Makefile.am
index f66aa25e1898b7fe6fde7e4616eb02ada756eedc..a870d1e5f91e468cfeb1fb3580206cc71bd9c45a 100644 (file)
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -28,6 +28,7 @@ $(INFO_DEPS): $(EXTRA_DIST)
 check-texinfo:
        fail=0; \
        grep timezone $(srcdir)/*.texi && fail=1; \
+       grep non-zero $(srcdir)/*.texi && fail=1; \
        grep '\$$@"' $(srcdir)/*.texi && fail=1; \
        $(PERL) -e 1 2> /dev/null && { $(PERL) -ne \
          '/\bPOSIX\b/ && !/\@acronym{POSIX}/ && !/^\* / || /{posix}/ and print,exit 1' \