Fix wrong regex in uncheck_installed().

The old regex turned ON into ONOFF. Dialog apparently treats that as
an OFF, so overall the code appeared to work fine. Neverthess, this is
worth a fix.
Spotted by slakmagik.

Signed-off-by: Mauro Giachero <mauro.giachero@gmail.com>

ChangeLog-current.txt

@@ -3,6 +3,8 @@ Sbopkg 0.XX.X released.  This version contains the following fixes and
 enhancements:
 
   * Fix typo in 50-default renames file.
+  * Fix the "Uncheck installed" feature. The code apparently worked fine even
+    without the fix. Spotted by slakmagik.
   * Add $ARCH information in dialog backtitles.
   * Add ":force" to sbopkg.conf WGETFLAGS --progress=bar to correctly
     display the wget progress bar; thanks to happyslacker for nudging me on

src/usr/sbin/sbopkg

@@ -1953,7 +1953,7 @@ uncheck_installed() {
 
     local QUEUEFILE=$1
 
-    sed -i 's:^\([^ ]* .*Installed.*\)[^ ]*$:\1OFF:' $QUEUEFILE
+    sed -i 's:^\([^ ]* .*Installed.* \)[^ ]\+$:\1OFF:' $QUEUEFILE
 }
 
 view_queue() {