In PostScript and PDF output, one AFM unit is not nearly enough

inter-word spacing, let's try again with 250 AFM units.
Regression caused during my recent term_flushln() reorg in rev. 1.278,
reported by brynet@ (sorry and many thanks for reporting).

1 files changed, 3 insertions, 2 deletions

diff --git a/term.c b/term.c
index af97796a..1c7cce6e 100644
--- a/term.c
+++ b/term.c
@@ -374,8 +374,9 @@ term_field(struct termp *p, size_t vbl, size_t nbr, size_t vbr, size_t vtarget)
 			continue;
 		case ' ':
 		case ASCII_NBRSP:
-			vbl++;
-			vis++;
+			dv = (*p->width)(p, ' ');
+			vbl += dv;
+			vis += dv;
 			continue;
 		default:
 			break;