Merge branch 'adjust-focused-goal' into 'master'

Normalize focused goal output

See merge request iris/iris!743

test-normalizer.sed

@@ -2,3 +2,5 @@
 s/(simple_intropattern)/(intropattern)/g
 # adjust for https://github.com/coq/coq/pull/13656
 s/subgoal/goal/g
+# merge with subsequent line for https://github.com/coq/coq/pull/14999
+/[0-9]* focused goals\?$/{N;s/\n */ /;}