handle case where romancal is installed with -e

requirements-sdp.txt

@@ -1,7 +1,7 @@
 # To generate this file:
 #
 #     pip install -e .[test,sdp]
-#     pip freeze | grep -v romancal.git >> requirements-sdp.txt
+#     pip freeze | grep -v romancal >> requirements-sdp.txt
 #
 # Add a CRDS context number for the delivery as a record here
 #