DefaultAccess: Specify charset in construction of String

Change-Id: I1f040a6a9f899425be744d54d7c438890f4aca43

java/com/google/gitiles/DefaultAccess.java

diff --git a/java/com/google/gitiles/DefaultAccess.java b/java/com/google/gitiles/DefaultAccess.java
index 0953923..aabda3d 100644
--- a/java/com/google/gitiles/DefaultAccess.java
+++ b/java/com/google/gitiles/DefaultAccess.java
@@ -15,6 +15,7 @@
 package com.google.gitiles;
 
 import static com.google.common.base.Preconditions.checkNotNull;
+import static java.nio.charset.StandardCharsets.UTF_8;
 
 import com.google.common.base.CharMatcher;
 import com.google.common.base.Strings;
@@ -196,7 +197,7 @@
     if (desc == null) {
       File descFile = new File(repo.getDirectory(), "description");
       if (descFile.exists()) {
-        desc = new String(IO.readFully(descFile));
+        desc = new String(IO.readFully(descFile), UTF_8);
         if (DEFAULT_DESCRIPTION.equals(CharMatcher.whitespace().trimFrom(desc))) {
           desc = null;
         }