Change 'unless' to 'onlyif' in third resource; fix formatting

manifests/install.pp

@@ -19,10 +19,10 @@ class anaconda::install {
   }
 
   exec { 'ensurecondainpath':
-    unless  => 'echo $PATH | grep /miniconda/bin',
+    onlyif   => 'echo $PATH | grep -c /miniconda/bin',
     command  => 'export PATH="/miniconda/bin:$PATH"',
     path     => ['/bin'],
-    provider=> 'shell',
+    provider => 'shell',
     require  => Exec['initialinstallconda'],
   }  
 }
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