terminal: alias stepout to so (#1646)

* alias stepout to so

* run gen-cli-docs.go to update cli/README.md

Documentation/cli/README.md

@@ -398,6 +398,7 @@ Aliases: si
 ## stepout
 Step out of the current function.
 
+Aliases: so
 
 ## thread
 Switch to the specified thread.

pkg/terminal/command.go

@@ -144,7 +144,7 @@ the arguments.  With -noargs, the process starts with an empty commandline.
 
 Optional [count] argument allows you to skip multiple lines.
 `},
-		{aliases: []string{"stepout"}, cmdFn: c.stepout, helpMsg: "Step out of the current function."},
+		{aliases: []string{"stepout", "so"}, cmdFn: c.stepout, helpMsg: "Step out of the current function."},
 		{aliases: []string{"call"}, cmdFn: c.call, helpMsg: `Resumes process, injecting a function call (EXPERIMENTAL!!!)
 	
 	call [-unsafe] <function call expression>