update man page

nnn.1

@@ -189,7 +189,8 @@ when dealing with the !, e and p commands respectively. A single combination to
     NOTE: To run a plugin directly, press \fI:\fR followed by the plugin key.
 .Ed
 .Pp
-    To assign keys to arbitrary non-background cli commands (non-shell-interpreted) and invoke like plugins, add \fI_\fR (underscore) before the command.
+    To assign keys to arbitrary non-background non-shell-interpreted cli
+    commands and invoke like plugins, add \fI_\fR (underscore) before the command.
 .Bd -literal
     export NNN_PLUG='x:_chmod +x $NNN;g:_git log;s:_smplayer $NNN;o:fzopen'