based on 
https://github.com/trusteddomainproject/OpenARC/pull/104


--- OpenARC-1.0.0.Beta0.orig/openarc/openarc.c	2018-06-18 20:27:45.000000000 +0000
+++ OpenARC-1.0.0.Beta0/openarc/openarc.c	2018-08-12 20:50:15.391229562 +0000
@@ -3673,11 +3673,6 @@ mlfi_eom(SMFICTX *ctx)
 			hfptr = arc_hdr_name(sealhdr, &len);
 			hfdest = hfname;
 			memset(hfname, '\0', sizeof hfname);
-			if (cc->cctx_noleadspc)
-			{
-				hfname[0] = ' ';
-				hfdest++;
-			}
 			strncpy(hfdest, hfptr, len);
 
 			status = arcf_insheader(ctx, 1, hfname,