1.  Disable the recognition of the last dot character in the default .Ar argument as an end-of-sentence character.
1.  Disable the recognition of the last dot character in the
default .Ar argument as an end-of-sentence character.

Example:
    .Ar
    foo
Produced:
    file ...  foo
Now produces:
    file ... foo

2.  Fixed an off-by-one bug in the .It macro for the -hang lists.

Example:
    .Bl -hang -width 8n -compact
    .It 1234
    OK
    .It 1234567
    OK
    .It 12345678
    BUG
    .El
Produced:
     1234      OK
     1234567   OK
     12345678 BUG
Now produces:
     1234      OK
     1234567   OK
     12345678  BUG

Ported from:	mdocNG

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase