Fix test name of test[suit|case] in the generated test.xml.

PiperOrigin-RevId: 365972959
diff --git a/tools/test/generate-xml.sh b/tools/test/generate-xml.sh
index d4a2ee9..78d66b9 100755
--- a/tools/test/generate-xml.sh
+++ b/tools/test/generate-xml.sh
@@ -100,7 +100,7 @@
 fi
 
 test_name="${TEST_BINARY#./}"
-test_name="${TEST_BINARY#../}"
+test_name="${test_name#../}"
 errors=0
 error_msg=""
 if (( $EXIT_CODE != 0 )); then