Spelling fixes

Change-Id: Ieac823c5b77674d5ed6979d97481a368e05c95e6
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/configure.ac b/configure.ac
index 49bc3dc..8c02dc8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -65,7 +65,7 @@
 AC_DEFINE_UNQUOTED([BOOT_COUNT_MAX_ALLOWED], [$BOOT_COUNT_MAX_ALLOWED], [The maximum allowed reboot count])
 
 # Check for header files.
-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])])
 AC_CHECK_HEADER(sdbusplus/server.hpp, ,[AC_MSG_ERROR([Could not find sdbusplus/server.hpp...openbmc/sdbusplus package required])])
 AC_CHECK_HEADER(phosphor-logging/log.hpp, ,[AC_MSG_ERROR([Could not find phosphor-logging/log.hpp...openbmc/phosphor-logging package required])])