Merge branch 'jl/nor-or-nand-and'

Eradicate mistaken use of "nor" (that is, essentially "nor" used
not in "neither A nor B" ;-)) from in-code comments, command output
strings, and documentations.

* jl/nor-or-nand-and:
  code and test: fix misuses of "nor"
  comments: fix misuses of "nor"
  contrib: fix misuses of "nor"
  Documentation: fix misuses of "nor"

remote.c

@@ -1481,7 +1481,7 @@ int match_push_refs(struct ref *src, struct ref **dst,
 				/*
 				 * Remote doesn't have it, and we have no
 				 * explicit pattern, and we don't have
-				 * --all nor --mirror.
+				 * --all or --mirror.
 				 */
 				goto free_name;