Add new practracker test files to Makefile.am

Makefile.am

@@ -174,6 +174,7 @@ EXTRA_DIST+= \
 	scripts/maint/practracker/practracker.py	\
 	scripts/maint/practracker/practracker_tests.py	\
 	scripts/maint/practracker/problem.py		\
+	scripts/maint/practracker/testdata/.may_include	\
 	scripts/maint/practracker/testdata/a.c		\
 	scripts/maint/practracker/testdata/b.c 		\
 	scripts/maint/practracker/testdata/ex0-expected.txt \
@@ -181,6 +182,7 @@ EXTRA_DIST+= \
 	scripts/maint/practracker/testdata/ex1-expected.txt \
 	scripts/maint/practracker/testdata/ex1.txt 	\
 	scripts/maint/practracker/testdata/ex.txt 	\
+	scripts/maint/practracker/testdata/header.h 	\
 	scripts/maint/practracker/testdata/not_c_file	\
 	scripts/maint/practracker/test_practracker.sh   \
 	scripts/maint/practracker/util.py