Tweaked coverage_changes command. I suspect this would benefit from a rewrite.

 - Legacy-Id: 16019

Author: levkowetz

ietf/utils/management/commands/coverage_changes.py

@@ -146,9 +146,9 @@ def coverage_diff(self, master, latest, sections, release=None, **options):
                     p = -1
                     n = 0
                     for line in ndiff(mmisslines, lmisslines):
-                        if ln < len(lmissnum):
+                        if   ln < len(lmissnum):
                             n = lmissnum[ln]
-                        else:
+                        elif mn < len(mmissnum):
                             n = mmissnum[mn]
                         prefix, text = line[:1], line[2:]
                         if mn<len(mmisslines) and text == mmisslines[mn]: