[rubygems/rubygems] docs(bundle-exec): recommend non-deprecated methods

ruby/rubygems@3b4934fb69

Author: saraid

lib/bundler/man/bundle-exec.1

@@ -74,8 +74,8 @@ end
 Bundler provides convenience helpers that wrap \fBsystem\fR and \fBexec\fR, and they can be used like this:
 .IP "" 4
 .nf
-Bundler\.clean_system('brew install wget')
-Bundler\.clean_exec('brew install wget')
+Bundler\.unbundled_system('brew install wget')
+Bundler\.unbundled_exec('brew install wget')
 .fi
 .IP "" 0
 .SH "RUBYGEMS PLUGINS"

lib/bundler/man/bundle-exec.1.ronn

@@ -108,8 +108,8 @@ need to use `with_unbundled_env`.
 Bundler provides convenience helpers that wrap `system` and `exec`, and they
 can be used like this:
 
-    Bundler.clean_system('brew install wget')
-    Bundler.clean_exec('brew install wget')
+    Bundler.unbundled_system('brew install wget')
+    Bundler.unbundled_exec('brew install wget')
 
 
 ## RUBYGEMS PLUGINS