Spelling fixes

Spelling errors found using github.com/lucasdemarchi/codespell
A tool to fix common misspellings.
This tool is licensed under GNU General Public License, version 2.

Change-Id: I192b40fcab98b64e39b3100d41ea025ca280d842
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/watch.cpp b/watch.cpp
index 270d1dc..5d05e9c 100644
--- a/watch.cpp
+++ b/watch.cpp
@@ -128,7 +128,7 @@
         offset += offsetof(inotify_event, name) + event->len;
     }
 
-    //Call user call back function incase valid data in the map
+    //Call user call back function in case valid data in the map
     if (!userMap.empty())
     {
         userData->userFunc(userMap);