mdocml: On .de macro lines, after the macro name, space and tab are

mdocml: On .de macro lines, after the macro name, space and tab are

[schwarze]

Log Message:
-----------
On .de macro lines, after the macro name, space and tab are equivalent.
Bug reported by Tristan dot LeGuern at gmail dot com in fvwm2(1).
tweaks and ok kristaps@; earlier version looked good to espie@ as well

Modified Files:
--------------
    mdocml:
        roff.c

Revision Data
-------------
Index: roff.c
===================================================================
RCS file: /usr/vhosts/mdocml.bsd.lv/cvs/mdocml/roff.c,v
retrieving revision 1.130
retrieving revision 1.131
diff -Lroff.c -Lroff.c -u -p -r1.130 -r1.131
--- roff.c
+++ roff.c
@@ -739,10 +739,10 @@ roff_block(ROFF_ARGS)
 			mandoc_msg(MANDOCERR_REQUEST, r->parse, ln, ppos,
 			    roffs[tok].name);
 
-		while ((*bufp)[pos] && ' ' != (*bufp)[pos])
+		while ((*bufp)[pos] && ! isspace((unsigned char)(*bufp)[pos]))
 			pos++;
 
-		while (' ' == (*bufp)[pos])
+		while (isspace((unsigned char)(*bufp)[pos]))
 			(*bufp)[pos++] = '\0';
 	}
 
@@ -763,9 +763,7 @@ roff_block(ROFF_ARGS)
 	/* If present, process the custom end-of-line marker. */
 
 	sv = pos;
-	while ((*bufp)[pos] &&
-			' ' != (*bufp)[pos] && 
-			'\t' != (*bufp)[pos])
+	while ((*bufp)[pos] && ! isspace((unsigned char)(*bufp)[pos]))
 		pos++;
 
 	/*
--
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