[gobject-introspection] build: silence "make[5]: unlink: Regress-1.0-Python: Is a directory"

[Colin Walters <walters src gnome org>]

commit 82b9bb7a7551e22494648808448ccf4cd79c7e2a
Author: Dieter Verfaillie <dieterv optionexplicit be>
Date:   Thu Apr 18 17:31:36 2013 +0200

    build: silence "make[5]: unlink: Regress-1.0-Python: Is a directory"
    
    https://bugzilla.gnome.org/show_bug.cgi?id=699532

 tests/scanner/Makefile.am |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/tests/scanner/Makefile.am b/tests/scanner/Makefile.am
index 70dfef1..ebffa51 100644
--- a/tests/scanner/Makefile.am
+++ b/tests/scanner/Makefile.am
@@ -160,17 +160,17 @@ CLEANFILES += $(MALLARD_CLEAN)
 
 %-C: %.gir
        $(AM_V_GEN)
-       $(AM_V_at)rm -rf $(builddir)/$*-C
+       $(AM_V_at)-rm -rf $(builddir)/$*-C
        $(AM_V_at)$(INTROSPECTION_DOCTOOL) $(INTROSPECTION_DOCTOOL_ARGS) --language C $*.gir -o 
$(builddir)/$*-C/
 
 %-Python: %.gir
        $(AM_V_GEN)
-       $(AM_V_at)rm -rf $(builddir)/$*-Python
+       $(AM_V_at)-rm -rf $(builddir)/$*-Python
        $(AM_V_at)$(INTROSPECTION_DOCTOOL) $(INTROSPECTION_DOCTOOL_ARGS) --language Python $*.gir -o 
$(builddir)/$*-Python/
 
 %-Gjs: %.gir
        $(AM_V_GEN)
-       $(AM_V_at)rm -rf $(builddir)/$*-Gjs
+       $(AM_V_at)-rm -rf $(builddir)/$*-Gjs
        $(AM_V_at)$(INTROSPECTION_DOCTOOL) $(INTROSPECTION_DOCTOOL_ARGS) --language Gjs $*.gir -o 
$(builddir)/$*-Gjs/
 
 %-C.page.check: %-C