Merge pull request #375 from cakebaker/pidof_simplify_usage_string

pidof: simplify usage string

Author: sylvestre

src/uu/pidof/pidof.md

@@ -1,7 +1,7 @@
 # pidof
 
 ```
-pidof [-s] [-c] [-n] [-x] [-z] [-o omitpid[,omitpid...]]  [-o omitpid[,omitpid...]...]  [-d sep] program [program...]
+pidof [options] [program [...]]
 ```
 
 Find the process ID of a running program