Documentation/git-quiltimport.txt: Fix labeled list formatting

Mark the continuation paragraph of a list entry as such to avoid
getting a literal paragraph instead.
Signed-off-by: NSergey Vlasov <vsu@altlinux.ru>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Documentation/git-quiltimport.txt

@@ -42,10 +42,10 @@ OPTIONS
 --patches <dir>::
 	The directory to find the quilt patches and the
 	quilt series file.
-
-        The default for the patch directory is patches
-	or the value of the $QUILT_PATCHES environment
-	variable.
++
+The default for the patch directory is patches
+or the value of the $QUILT_PATCHES environment
+variable.
 
 Author
 ------