fix a couple of typos

[Ralf Wildenhues]

I applied this.

Cheers,
Ralf

2006-10-20  Ralf Wildenhues  <address@hidden>

        * doc/autoconf.texi (Limitations of Usual Tools): Fix two typos.

Index: doc/autoconf.texi
===================================================================
RCS file: /cvsroot/autoconf/autoconf/doc/autoconf.texi,v
retrieving revision 1.1097
diff -u -r1.1097 autoconf.texi
--- doc/autoconf.texi   20 Oct 2006 01:34:32 -0000      1.1097
+++ doc/autoconf.texi   20 Oct 2006 16:24:39 -0000
@@ -13490,7 +13490,7 @@
 @prindex @command{mkdir}
 @cindex Making directories
 No @command{mkdir} option is portable to older systems.  Instead of
address@hidden -p @var{file-name}}, you should use use
address@hidden -p @var{file-name}}, you should use
 @code{AS_MKDIR_P(@var{file-name})} (@pxref{Programming in M4sh})
 or @code{AC_PROG_MKDIR_P} (@pxref{Particular Programs}).
 
@@ -13613,7 +13613,7 @@
 @prindex @command{rm}
 The @option{-f} and @option{-r} options are portable.
 
-A file might not be be removed even if its parent directory is writable
+A file might not be removed even if its parent directory is writable
 and searchable.  Many Posix hosts cannot remove a mount point, a named
 stream, a working directory, or a last link to a file that is being
 executed.