gn path: Add missing newline to output summary

Before:
> Showing one of 92 "interesting" public paths.Use --all to print all paths.

After:
> Showing one of 92 "interesting" public paths.
> Use --all to print all paths.

Visual diff with full output: http://www.mergely.com/PJ83W4M7/

BUG=none
R=brettw@chromium.org

Review-Url: https://codereview.chromium.org/2807193004
Cr-Original-Commit-Position: refs/heads/master@{#465396}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: a38716a1806d8b03999d77f9bbfb1e793f60f34b
diff --git a/tools/gn/command_path.cc b/tools/gn/command_path.cc
index f6a4e69..daa2200 100644
--- a/tools/gn/command_path.cc
+++ b/tools/gn/command_path.cc
@@ -403,10 +403,10 @@
                              stats.total_paths(), path_annotation),
           DECORATION_YELLOW);
       if (!options.public_only) {
-        OutputString(base::StringPrintf(" %d of them are public.\n",
-                                        stats.public_paths));
+        OutputString(
+            base::StringPrintf(" %d of them are public.", stats.public_paths));
       }
-      OutputString("Use --all to print all paths.\n");
+      OutputString("\nUse --all to print all paths.\n");
     }
   }
   return 0;