[tracker] build: Change configure's --disable-unzip-ps-gz-files to --enable* like others.

[Martyn James Russell <mr src gnome org>]

commit 9c0cee227a9b06fadaf79ee327badd8ae4f46455
Author: Martyn Russell <martyn lanedo com>
Date:   Wed Feb 26 15:17:33 2014 +0000

    build: Change configure's --disable-unzip-ps-gz-files to --enable* like others.
    
    Nothing changes as a result of this, the default is still to enable by
    default

 configure.ac |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index aa5b97c..3a7e92c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1717,8 +1717,8 @@ AM_CONDITIONAL(HAVE_GSTREAMER_PBUTILS, test "x$gstreamer_backend" = "xDiscoverer
 ####################################################################
 
 AC_ARG_ENABLE([unzip_psgz_files],
-              AS_HELP_STRING([--disable-unzip-ps-gz-files],
-                             [disable unzipping ps.gz files [[default=yes]]]),,
+              AS_HELP_STRING([--enable-unzip-ps-gz-files],
+                             [enable extractor for PS.GZ metadata [[default=yes]]]),,
               [enable_unzip_psgz_files=yes])
 
 if test x$enable_unzip_psgz_files != "xno"; then