Updated Typos in devstack

(1/5) Updated HACKING.rst for typos
(2/5) Updated typos in lib/dlm
(3/5) Updated typos in lib/ironic
(4/5) Updated typos in unittest.sh
(5/5) Updated typos in test_meta_config.sh

Change-Id: I7aafa3af69df9dc6a5923a8557f380d48b73433a
diff --git a/tests/test_meta_config.sh b/tests/test_meta_config.sh
index f3e94af..327fb56 100755
--- a/tests/test_meta_config.sh
+++ b/tests/test_meta_config.sh
@@ -24,7 +24,7 @@
 }
 
 # mock function-common:die so that it does not
-# interupt our test script
+# interrupt our test script
 function die {
     exit -1
 }
diff --git a/tests/unittest.sh b/tests/unittest.sh
index 2570319..26b5b8e 100644
--- a/tests/unittest.sh
+++ b/tests/unittest.sh
@@ -46,7 +46,7 @@
     ERROR=$((ERROR+1))
 }
 
-# assert string comparision of val1 equal val2, printing out msg
+# assert string comparison of val1 equal val2, printing out msg
 #  usage: assert_equal val1 val2 msg
 function assert_equal {
     local lineno