open_memstream.3: Rework text describing dynamic allocation

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

1 files changed, 2 insertions, 3 deletions

diff --git a/man3/open_memstream.3 b/man3/open_memstream.3
index ce4cbaaf35..c6cdc3a9e9 100644
--- a/man3/open_memstream.3
+++ b/man3/open_memstream.3
@@ -44,9 +44,8 @@ _GNU_SOURCE
 The
 .BR open_memstream ()
 function opens a stream for writing to a buffer.
-The function dynamically allocates the buffer (in the manner of
-.BR malloc (3)),
-and the buffer automatically grows as required.
+The function dynamically allocates the buffer, growing it as required.
+Initially, the buffer has a size of zero.
 After closing the stream, the caller should
 .BR free (3)
 this buffer.