bump to v2.1.2

Author: hedzr

CHANGELOG

@@ -1,5 +1,18 @@
 # CHANGELOG
 
+- v2.1.2
+
+  - lots of improvements and fixes
+    - fix dockerfile
+    - fix InvokeProc/InvokeShell
+    - fix `OnEvaluateSubCommandsFromConfig`
+    - added WithOnShowVersion, ...
+    - added conf.GitDesc, BuilderComment
+    - implements onPassThruCharMatched, ...
+    - implements onShowVersion, ...
+    - improved dyncmd (alias) feature
+    - cleanup
+
 - v2.1.1
 
   - lots of improvements and fixes

README.md

@@ -10,7 +10,6 @@
 [![Coverage Status](https://coveralls.io/repos/github/hedzr/cmdr/badge.svg?branch=master)](https://coveralls.io/github/hedzr/cmdr?branch=master)-->
 [![Mentioned in Awesome Go](https://awesome.re/mentioned-badge.svg)](https://github.com/avelino/awesome-go#command-line)
 
-> **Preview v2.1.1**:
 > A preview release for the frozen stable API - v2.1.x series  
 > `[cmdr-docs-dev](https://github.com/hedzr/cmdr-docs-dev)` in composing.
 

doc.go

@@ -2,4 +2,4 @@
 
 package cmdr
 
-const Version = "v2.1.1" // Version fir hedzr/cmdr/v2
+const Version = "v2.1.2" // Version fir hedzr/cmdr/v2