Updated bugreport info strings to be consistent with its meaning.

Also removed DO NOT TRANSLATE from new bugreport strings whose phrasing
have been confirmed.

Change-Id: Ic0eafb6c007acd63f1d11f7a5043259533189df0
diff --git a/packages/Shell/res/values/strings.xml b/packages/Shell/res/values/strings.xml
index dcd5f04..1459d53 100644
--- a/packages/Shell/res/values/strings.xml
+++ b/packages/Shell/res/values/strings.xml
@@ -58,10 +58,10 @@
 
     <!-- Text of the hint asking for the bug report name, which when set will define a suffix in the
          bug report file names. [CHAR LIMIT=30] -->
-    <string name="bugreport_info_name">Short name</string>
+    <string name="bugreport_info_name">Filename</string>
     <!-- Text of hint asking for the bug report title, which when set will define the
          Subject of the email message. [CHAR LIMIT=60] -->
-    <string name="bugreport_info_title">1-line summary</string>
+    <string name="bugreport_info_title">Title</string>
     <!-- Text of hint asking for the bug report description, which when set will describe
          what the bug report is about. [CHAR LIMIT=NONE] -->
     <string name="bugreport_info_description">Detailed description</string>