fop.1: removes Unicode representation of RS; hru.1: removes erroneous line break; mm.1: formatting & grammar; npc.1: dollar sign, not currency sign; rpn.1: syntax error; scrut.1: move description to DESCRIPTION; str.1: comma; swab.1: wording & escape codes; true.1: formatting

docs/mm.1

@@ -27,13 +27,11 @@ Opens subsequent outputs for appending rather than updating.
 .IP \fB-e\fP
 Use the standard error as an output.
 .IP \fB-i\fP
-Opens a path as an input. Without any inputs specified mm will use the
-standard input. The standard input shall be used as an input if one or more of
-the input files is \(lq-\(rq.
+Opens a path as an input. If one or more of the input files is \(lq-\(rq or if
+no inputs are specified, the standard input shall be used.
 .IP \fB-o\fP
-Opens a path as an output. Without any outputs specified mm will use the
-standard output. The standard output shall be used as an output if one or more
-of the output files is \(lq-\(rq.
+Opens a path as an output. If one or more of the output files is \(lq-\(rq or if
+no outputs are specified, the standard output shall be used.
 .IP \fB-u\fP
 Ensures neither input or output will be buffered.
 .IP \fB-n\fP
@@ -41,11 +39,10 @@ Causes SIGINT signals to be ignored.
 .\"
 .SH DIAGNOSTICS
 
-If an output can no longer be written mm prints a diagnostic message, ceases
-writing to that particular output, and if there are more outputs specified,
-continues, eventually exiting unsuccessfully.
+If an output cannot be written to, an error occurs. Additional outputs are not
+affected and writing to them continues.
 
-When an error is encountered, diagnostic message is printed and the program
+When an error is encountered, a diagnostic message is printed and the program
 exits with the appropriate
 .BR sysexits.h (3)
 status.