Add space between install -m option and its argument. Got this patch from 
OE 709c4d66e0b107ca606941b988bad717c0b45d9b

Upstream-Status: Inappropriate [not author]

Index: dbench-4.0/Makefile.in
===================================================================
--- dbench-4.0.orig/Makefile.in
+++ dbench-4.0/Makefile.in
@@ -35,7 +35,7 @@ install: all
 	${INSTALLCMD} -d $(DESTDIR)$(bindir) $(DESTDIR)$(datadir) $(DESTDIR)$(mandir)
 	${INSTALLCMD} dbench tbench tbench_srv $(DESTDIR)$(bindir)
 	${INSTALLCMD} @top_srcdir@/client.txt $(DESTDIR)$(datadir)
-	${INSTALLCMD} -m644 @top_srcdir@/dbench.1 $(DESTDIR)$(mandir)
+	${INSTALLCMD} -m 644 @top_srcdir@/dbench.1 $(DESTDIR)$(mandir)
 	ln -sf dbench.1 $(DESTDIR)$(mandir)/tbench.1
 	ln -sf dbench.1 $(DESTDIR)$(mandir)/tbench_srv.1