Remove extra newline in error message.

sdk/lib/_internal/pub/lib/src/solver/version_solver.dart

Index: sdk/lib/_internal/pub/lib/src/solver/version_solver.dart
diff --git a/sdk/lib/_internal/pub/lib/src/solver/version_solver.dart b/sdk/lib/_internal/pub/lib/src/solver/version_solver.dart
index d77eb824c8f9864cfa258149fda5c0958d0d6f5e..0f60499968060da5af5d82b53c19408e94b29cbd 100644
--- a/sdk/lib/_internal/pub/lib/src/solver/version_solver.dart
+++ b/sdk/lib/_internal/pub/lib/src/solver/version_solver.dart
@@ -235,7 +235,7 @@ abstract class SolveFailure implements ApplicationException {
     if (dependencies.isEmpty) return _message;
 
     var buffer = new StringBuffer();
-    buffer.writeln("$_message:");
+    buffer.write("$_message:");

[nweiz, 2013/12/14 00:39:19]

Should this have a space after it now?

[Bob Nystrom, 2013/12/14 00:41:08]

No, there's still a newline, it's just added below at the beginning of the loop
for each name. It was using a .join() before to put newlines *between* the
packages, now it places a newline *before* each one. Dumb off by one error to
leave this newline here.

 
     var map = {};
     for (var dep in dependencies) {