title: lesscss-maven-plugin not minifying properly
body: <p>Before less compile i have the following css code in pages/dashboard.less</p>
  
  <pre><code>// main:../build/dashboard.less, compress: true, strictMath: true
  #dash-container {
      height: calc(100vh - 130px);
  }
  </code></pre>
  
  <p>In build/dashboard.less I have the following code</p>
  
  <pre><code>// out: ../../css/dashboard.css, compress: true, strictMath: true
  @import "common.less";
  </code></pre>
  
  <p>In my css/dashboard.css I have the following code when i am using brackets editor to compile less</p>
  
  <pre><code>/*! normalize.css v3.0.2 | MIT License | git.io/normalize */ 
  #dash-container{height:calc(100vh - 130px);}
  </code></pre>
  
  <p>But when I build using lesscss-maven-plugin I am getting the following css code. It is not a correct one. I am getting wrong compiled css. Can any one help me.
  </p>
  
  <pre><code>    #dash-container{height:calc(-30vh);}
  </code></pre>