Wait/test any/some/all leaves out single request case

[wgropp]

Problem

p 519 uses MPI_WAIT{ANY|SOME|ALL} but to be consistent with the other use of this style, should be MPI_WAIT{|ANY|SOME|ALL} (which is used elsewhere)
Also true on p 631, lines 8, 37, 43. Also p 635, lines 41 and 45. As written, this says that MPI_WAIT and MPI_TEST are not included in this text, which is not the intent.
Note the first use of this construction on p 519 is explicitly for arrays of requests, in which case MPI_{WAIT|TEST}{ANY|SOME|ALL} (without the "|" before ANY) is correct.

Proposal

Add this missing "|" before the "ANY" where needed (as noted, one spot on p519 refers only to wait or test with an array of requests, and is correct without the "|" before ANY).

Changes to the Text

As described.

Impact on Implementations

None.

Impact on Users

Improves quality of the document

References and Pull Requests

See PR mpi-forum/mpi-standard/pull/1117