# HG changeset patch
# User Sergey Poznyakoff <gray@gnu.org.ua>
# Date 1134250616 0
# Node ID d39421bbc830575c9639ec64f6967302cf009f51
# Parent  c5451290271ba12485927ed04d6bd5ffe12c5124
(__argp_fmtstream_update): Fix coredump

diff --git a/lib/argp-fmtstream.c b/lib/argp-fmtstream.c
--- a/lib/argp-fmtstream.c
+++ b/lib/argp-fmtstream.c
@@ -246,9 +246,10 @@
 		 Oh well.  Put it on an overlong line by itself.  */
 	      p = buf + (r + 1 - fs->point_col);
 	      /* Find the end of the long word.  */
-	      do
-		++p;
-	      while (p < nl && !isblank (*p));
+	      if (p < nl)
+		do
+		  ++p;
+		while (p < nl && !isblank (*p));
 	      if (p == nl)
 		{
 		  /* It already ends a line.  No fussing required.  */