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: I6dcf76a74487d04d4568d55d08d1b07f627e5e74
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/configure.ac b/configure.ac
index d2156ab..aedae42 100644
--- a/configure.ac
+++ b/configure.ac
@@ -51,7 +51,7 @@
 
 # Checks for header files.
 AS_IF([test "x$enable_libsdbusplus" != "xno"],
-      [AC_CHECK_HEADER(systemd/sd-bus.h, ,[AC_MSG_ERROR([Could not find systemd/sd-bus.h...systemd developement package required])])])
+      [AC_CHECK_HEADER(systemd/sd-bus.h, ,[AC_MSG_ERROR([Could not find systemd/sd-bus.h...systemd development package required])])])
 
 # Checks for typedefs, structures, and compiler characteristics.
 AS_IF([test "x$enable_libsdbusplus" != "xno"],