swanctl: Register --version as last command

src/swanctl/Makefile.am

@@ -5,11 +5,11 @@ swanctl_SOURCES = \
 	commands/initiate.c \
 	commands/terminate.c \
 	commands/install.c \
-	commands/version.c \
 	commands/list_sas.c \
 	commands/list_pols.c \
 	commands/load_conns.c \
 	commands/load_creds.c \
+	commands/version.c \
 	swanctl.c swanctl.h
 
 swanctl_LDADD = \