Take the first dotnet cli we find instead of the last one we find (ma…

…tch the comment) (#2427)

Co-authored-by: Fred Silberberg <fred@silberberg.xyz>

src/OmniSharp.Host/Services/DotNetCliService.cs

@@ -40,6 +40,7 @@ public DotNetCliService(ILoggerFactory loggerFactory, IEventEmitter eventEmitter
                 {
                     // We'll take the first path that has a dotnet executable.
                     DotNetPath = Path.Combine(path, "dotnet");
+                    break;
                 }
                 else
                 {