Clarify sinfo format option processing

doc/man/man1/sinfo.1

@@ -168,9 +168,9 @@ Features available the nodes, also see \fB%b\fR
 .TP
 \fB%F\fR
 Number of nodes by state in the format
-"allocated/idle/other/total".  Do not use this with a node
-state option ("%t" or "%T") or the different node states will
-be placed on separate lines.
+"allocated/idle/other/total".  Note the use of this format option with a node
+state format option ("%t" or "%T") will result in the different node states
+being be reported on separate lines.
 .TP
 \fB%g\fR
 Groups which may use the nodes