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: I645d241b93eee77222b9ce19147e4ed2c48e4ef1
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/argument.hpp b/argument.hpp
index 1c07c5c..8a25aea 100644
--- a/argument.hpp
+++ b/argument.hpp
@@ -22,7 +22,7 @@
         ArgumentParser(ArgumentParser&&) = default;
         ArgumentParser& operator=(ArgumentParser&&) = default;
 
-        /** @brief Contructs ArgumentParser object
+        /** @brief Constructs ArgumentParser object
          *
          *  @param argc - the main function's argc passed as is
          *  @param argv - the main function's argv passed as is
diff --git a/timer.cpp b/timer.cpp
index 2825855..f4bf725 100644
--- a/timer.cpp
+++ b/timer.cpp
@@ -99,7 +99,7 @@
     auto r = sd_event_source_get_enabled(eventSource.get(), &enabled);
     if (r < 0)
     {
-        log<level::ERR>("Error geting current timer type enablement state");
+        log<level::ERR>("Error getting current timer type enablement state");
         elog<InternalFailure>();
     }
     return enabled;