Merge from origin/emacs-26

a1c53d42 (origin/emacs-26) * admin/admin.el (make-manuals-dist--1): Up...
d0f745f6 Document some compilation-mode faces
23ccba0c Mention the assignment form in "Copyright Assignment"
0f5568ea Fix confusing wording in the user manual
70ec3928 Fix the MSDOS build when running under CWSDPMI
7a608fc6 * lisp/progmodes/python.el: Be more careful about temp file r...
1 job for master in 49 minutes and 56 seconds (queued for 3 seconds)
Status Job ID Name Coverage
failed #1401


Name Stage Failure
test-all Test
Makefile:313: recipe for target 'check-doit' failed
make[2]: *** [check-doit] Error 1
make[2]: Leaving directory '/builds/emacs/emacs/test'
Makefile:288: recipe for target 'check-expensive' failed
make[1]: *** [check-expensive] Error 2
make[1]: Leaving directory '/builds/emacs/emacs/test'
Makefile:962: recipe for target 'check-expensive' failed
make: *** [check-expensive] Error 2
ERROR: Job failed: exit code 1