update payload to flush process channel buffers on exit

Author: busterb

Gemfile.lock

@@ -20,7 +20,7 @@ PATH
       metasploit-model
       metasploit-payloads (= 1.3.28)
       metasploit_data_models
-      metasploit_payloads-mettle (= 0.3.6)
+      metasploit_payloads-mettle (= 0.3.7)
       mqtt
       msgpack
       nessus_rest
@@ -192,7 +192,7 @@ GEM
       postgres_ext
       railties (~> 4.2.6)
       recog (~> 2.0)
-    metasploit_payloads-mettle (0.3.6)
+    metasploit_payloads-mettle (0.3.7)
     method_source (0.9.0)
     mini_portile2 (2.3.0)
     minitest (5.11.1)

metasploit-framework.gemspec

@@ -72,7 +72,7 @@ Gem::Specification.new do |spec|
   # Needed for Meterpreter
   spec.add_runtime_dependency 'metasploit-payloads', '1.3.28'
   # Needed for the next-generation POSIX Meterpreter
-  spec.add_runtime_dependency 'metasploit_payloads-mettle', '0.3.6'
+  spec.add_runtime_dependency 'metasploit_payloads-mettle', '0.3.7'
   # Needed by msfgui and other rpc components
   spec.add_runtime_dependency 'msgpack'
   # get list of network interfaces, like eth* from OS.