nth time lucky with .travis.yml format

.travis.yml

@@ -1,13 +1,13 @@
 language: c
 
 before_install:
-	# Make sure mono is installed,
-	# pipe stdout to dev/null because qq is still too chatty
-	- sudo apt-get update -qq > /dev/null
-	- sudo apt-get install -qq mono-devel > /dev/null
+    # Make sure mono is installed,
+    # pipe stdout to dev/null because qq is still too chatty
+    - sudo apt-get update -qq > /dev/null
+    - sudo apt-get install -qq mono-devel > /dev/null
 
 env:
-	- EnableNuGetPackageRestore=true
+    - EnableNuGetPackageRestore=true
 
 script:
-	- xbuild src/threescale.NET.sln
+    - xbuild src/threescale.NET.sln