Fix header lines length (#752)

Commit 17a012d7 added a newline to the str, so the line built from
str.length() is one character longer than it should be.
diff --git a/AUTHORS b/AUTHORS
index 09e2e05..ef3051a 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -9,6 +9,7 @@
 # Please keep the list sorted.
 
 Albert Pretorius <pretoalb@gmail.com>
+Andriy Berestovskyy <berestovskyy@gmail.com>
 Arne Beer <arne@twobeer.de>
 Carto
 Christopher Seymour <chris.j.seymour@hotmail.com>
diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index ee74ff8..d0c31df 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -23,6 +23,7 @@
 # Please keep the list sorted.
 
 Albert Pretorius <pretoalb@gmail.com>
+Andriy Berestovskyy <berestovskyy@gmail.com>
 Arne Beer <arne@twobeer.de>
 Billy Robert O'Neal III <billy.oneal@gmail.com> <bion@microsoft.com>
 Chris Kennelly <ckennelly@google.com> <ckennelly@ckennelly.com>
diff --git a/src/console_reporter.cc b/src/console_reporter.cc
index ca36472..cc8ae27 100644
--- a/src/console_reporter.cc
+++ b/src/console_reporter.cc
@@ -64,9 +64,8 @@
       str += " UserCounters...";
     }
   }
-  str += "\n";
   std::string line = std::string(str.length(), '-');
-  GetOutputStream() << line << "\n" << str << line << "\n";
+  GetOutputStream() << line << "\n" << str << "\n" << line << "\n";
 }
 
 void ConsoleReporter::ReportRuns(const std::vector<Run>& reports) {