Remove empty char at EOL in docs

Change-Id: I36cb3b1f5a413559bd4820648903f55ef576c72a

src/main/resources/Documentation/tuning.md

diff --git a/src/main/resources/Documentation/tuning.md b/src/main/resources/Documentation/tuning.md
index 01653f0..a27cb7c 100644
--- a/src/main/resources/Documentation/tuning.md
+++ b/src/main/resources/Documentation/tuning.md
@@ -30,7 +30,7 @@
 your Gerrit server will not need downtime. As follows:
 
 * Drop `cache-chroniclemap.jar` file in the `plugins/` directory.
-* Wait for the pluginLoader to acknowledge and load the new plugin. You will 
+* Wait for the pluginLoader to acknowledge and load the new plugin. You will
 see an entry in the `error_log`:
 
 ```