Fix spelling mistakes

These were found with:
codespell -w $(git ls-files | grep "\.[hc]\(pp\)\?$")

At some point in the future, we might want to get this enabled in CI.

Change-Id: Iccb57b2adfd06a2e177e99db2923fe4e8e329118
Signed-off-by: Ed Tanous <ed@tanous.net>
diff --git a/include/human_sort.hpp b/include/human_sort.hpp
index fba9804..d248cba 100644
--- a/include/human_sort.hpp
+++ b/include/human_sort.hpp
@@ -98,7 +98,7 @@
 }
 
 // A generic template type compatible with std::less that can be used on generic
-// containers (set, map, ect)
+// containers (set, map, etc)
 template <class Type>
 struct AlphanumLess
 {