docs: enhance recommendations on test usage

* doc/autoconf.texi (Limitations of Builtins) <test (strings)>:
Mention yet another Solaris issue.
Reported by Stefano Lattarini.

Signed-off-by: Eric Blake <eblake@redhat.com>

diff --git a/ChangeLog b/ChangeLog
index 0c3e5d48eea757b3d9ee80d46b2753fe0e6ddf44..d43f681805a77c8415eb2c26e954cbfbdc717936 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2010-09-07  Eric Blake  <eblake@redhat.com>
+
+       docs: enhance recommendations on test usage
+       * doc/autoconf.texi (Limitations of Builtins) <test (strings)>:
+       Mention yet another Solaris issue.
+       Reported by Stefano Lattarini.
+
 2010-08-30  Eric Blake  <eblake@redhat.com>
 
        tests: avoid trashing /

diff --git a/doc/autoconf.texi b/doc/autoconf.texi
index 923fff608b1c1fd5dc468b278fd3e77a8dd48fe5..4d62bf39e5215505726307c589dd13a9fefadb68 100644 (file)
--- a/doc/autoconf.texi
+++ b/doc/autoconf.texi
@@ -17505,6 +17505,8 @@ $ @kbd{test -n =}
 test: argument expected
 $ @kbd{test ! -n}
 test: argument expected
+$ @kbd{test -z ")"; echo $?}
+0
 @end example
 
 Similarly, Posix says that both @samp{test "@var{string1}" = "@var{string2"}}