Replaced a handful of `mkdir -p` by $(MKDIR_P)

Makefile.am

@@ -33,7 +33,7 @@ runtest: ./runtest.sh
 
 #Adding logdir creation on install
 install-data-hook:
-	mkdir -p ${DESTDIR}$(lodel2_localstatedir); mkdir -p ${DESTDIR}$(docdir); cp README ${DESTDIR}$(docdir);
+	$(MKDIR_P) ${DESTDIR}$(lodel2_localstatedir); $(MKDIR_P) ${DESTDIR}$(docdir); cp README ${DESTDIR}$(docdir);
 
 #Making debian package
 deb: dist

lodel/Makefile.am

@@ -22,7 +22,7 @@ do_subst = sed 	-e 's,\[@\]LODEL2_VARDIR\[@\],$(localstatedir)/lodel2/,g' \
 
 
 install-data-hook:
-	-mkdir -p ${DESTDIR}$(logdir)
+	$(MKDIR_P) ${DESTDIR}$(logdir)
 
 uninstall-hook:
 	-rmdir ${DESTDIR}$(logdir)