Make distuninstallcheck work when $(RM) contains spaces (e.g., rm -f).

We must quote $(RM) value when passing it to scripts/remove-cfg.sh
The bug was detected by running test-builds.sh.

=== modified file 'errors/Makefile.am'
--- errors/Makefile.am	2009-06-12 05:07:44 +0000
+++ errors/Makefile.am	2009-06-12 16:24:44 +0000
@@ -98,7 +98,7 @@
 		done; \
 	  fi \
 	done;
-	@$(SHELL) $(top_srcdir)/scripts/remove-cfg.sh $(RM) $(DESTDIR)$(DEFAULT_STYLESHEET)
+	@$(SHELL) $(top_srcdir)/scripts/remove-cfg.sh "$(RM)" $(DESTDIR)$(DEFAULT_STYLESHEET)
 	rm -f $(DESTDIR)$(DEFAULT_STYLESHEET).default
 
 # undocumented hack.  You can use this target to create multi-lingual

=== modified file 'helpers/basic_auth/MSNT/Makefile.am'
--- helpers/basic_auth/MSNT/Makefile.am	2009-04-23 09:52:10 +0000
+++ helpers/basic_auth/MSNT/Makefile.am	2009-06-12 16:24:44 +0000
@@ -47,6 +47,6 @@
 	fi
 
 uninstall-local:
-	@$(SHELL) $(top_srcdir)/scripts/remove-cfg.sh $(RM) $(DESTDIR)$(MSNTAUTH_CONF)
+	@$(SHELL) $(top_srcdir)/scripts/remove-cfg.sh "$(RM)" $(DESTDIR)$(MSNTAUTH_CONF)
 	$(RM) -f $(DESTDIR)$(MSNTAUTH_CONF).default
 

=== modified file 'src/Makefile.am'
--- src/Makefile.am	2009-06-01 12:31:43 +0000
+++ src/Makefile.am	2009-06-12 16:24:44 +0000
@@ -790,8 +790,8 @@
 	$(mkinstalldirs) $(DESTDIR)$(DEFAULT_LOG_PREFIX)
 
 uninstall-local:
-	@$(SHELL) $(top_srcdir)/scripts/remove-cfg.sh $(RM) $(DESTDIR)$(DEFAULT_MIME_TABLE)
-	@$(SHELL) $(top_srcdir)/scripts/remove-cfg.sh $(RM) $(DESTDIR)$(DEFAULT_CONFIG_FILE)
+	@$(SHELL) $(top_srcdir)/scripts/remove-cfg.sh "$(RM)" $(DESTDIR)$(DEFAULT_MIME_TABLE)
+	@$(SHELL) $(top_srcdir)/scripts/remove-cfg.sh "$(RM)" $(DESTDIR)$(DEFAULT_CONFIG_FILE)
 
 CLEANFILES += cf_gen_defines.h cf.data cf_parser.h squid.conf.default squid.conf.documented \
 	globals.cc string_arrays.c repl_modules.cc DiskIO/DiskIOModules_gen.cc \

=== modified file 'tools/Makefile.am'
--- tools/Makefile.am	2009-04-23 09:52:10 +0000
+++ tools/Makefile.am	2009-06-12 16:24:44 +0000
@@ -47,7 +47,7 @@
 	fi
 
 uninstall-local:
-	@$(SHELL) $(top_srcdir)/scripts/remove-cfg.sh $(RM) $(DESTDIR)$(DEFAULT_CACHEMGR_CONFIG)
+	@$(SHELL) $(top_srcdir)/scripts/remove-cfg.sh "$(RM)" $(DESTDIR)$(DEFAULT_CACHEMGR_CONFIG)
 	$(RM) -f $(DESTDIR)$(DEFAULT_CACHEMGR_CONFIG).default
 
 DISTCLEANFILES =