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: Idea8f76487125a7c7334b415a369c73d9fac40c4
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/tools/elog-gen.py b/tools/elog-gen.py
index 7f66fab..9169a6e 100755
--- a/tools/elog-gen.py
+++ b/tools/elog-gen.py
@@ -30,7 +30,7 @@
     if(has_inheritance):
         # Order the error codes list such that an error is never placed
         # before it's parent. This way generated code can ensure parent
-        # definitions preceed child error definitions.
+        # definitions precede child error definitions.
         while(len(errors) < len(i_errors)):
             for error in i_errors:
                 if(error in errors):