The test script was renamed by upstream.
Should be reported upstream
Index: git/tests/Makefile
===================================================================
--- git.orig/tests/Makefile	2010-03-23 00:41:44.000000000 +0100
+++ git/tests/Makefile	2010-03-23 00:52:20.000000000 +0100
@@ -233,7 +233,7 @@
 	$(INSTALL) -m 755 wrapper-utils.sh $(DESTDIR)$(INST_TESTSDIR32)/obj32
 	$(INSTALL) -m 755 $(HELPERS:%=obj32/%) $(DESTDIR)$(INST_TESTSDIR32)/obj32
 	$(INSTALL) -m 755 $(HELPER_LIBS:%=obj32/%) $(DESTDIR)$(INST_TESTSDIR32)/obj32
-	$(INSTALL) -m 755 run_tests.sh $(DESTDIR)$(INST_TESTSDIR32)
+	$(INSTALL) -m 755 run_tests.py $(DESTDIR)$(INST_TESTSDIR32)
 
 obj64/install:
 	@$(VECHO) INSTALL64 $(INST_TESTSDIR64)
@@ -245,6 +245,6 @@
 	$(INSTALL) -m 755 $(HELPERS:%=obj64/%) $(DESTDIR)$(INST_TESTSDIR64)/obj64
 	$(INSTALL) -m 755 $(HELPER_LIBS:%=obj64/%) $(DESTDIR)$(INST_TESTSDIR64)/obj64
 	$(INSTALL) -m 755 $(TESTS_64:%=obj64/%) $(DESTDIR)$(INST_TESTSDIR64)/obj64
-	$(INSTALL) -m 755 run_tests.sh $(DESTDIR)$(INST_TESTSDIR64)
+	$(INSTALL) -m 755 run_tests.py $(DESTDIR)$(INST_TESTSDIR64)
 
 install: $(OBJDIRS:%=%/install)
