Improved phrasing for "in progress" message.

BUG: 25948539
Change-Id: Ie746a12207da337ec26e85dfbbd4188aa751c20d
diff --git a/packages/Shell/res/values/strings.xml b/packages/Shell/res/values/strings.xml
index cff36f7..090b171 100644
--- a/packages/Shell/res/values/strings.xml
+++ b/packages/Shell/res/values/strings.xml
@@ -17,8 +17,8 @@
 <resources>
     <string name="app_label">Shell</string>
 
-    <!-- Title of notification indicating a bugreport process is in progress. [CHAR LIMIT=50] -->
-    <string name="bugreport_in_progress_title">Bug report in progress</string>
+    <!-- Title of notification indicating a bugreport is being generated. [CHAR LIMIT=50] -->
+    <string name="bugreport_in_progress_title">Bug report is being generated</string>
     <!-- Title of notification indicating a bugreport has been successfully captured. [CHAR LIMIT=50] -->
     <string name="bugreport_finished_title">Bug report captured</string>