[PATCH] doc: remove reference to pcapng init function

[Cian Ferriter <cian.ferriter@intel.com>]

The rte_pcapng_init function doesn't exist, so remove it from the docs.

Also fix minor mistakes in the file.

Signed-off-by: Cian Ferriter <cian.ferriter@intel.com>

---

The rte_pcapng_init function existed in earlier versions of patches for
this file on the mailing list, but was dropped in favour of
RTE_INIT(pcapng_init) which doesn't need to be called explicitly by the
programmer, if I understand the RTE_INIT macro correctly.
---
 doc/guides/prog_guide/pcapng_lib.rst | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/doc/guides/prog_guide/pcapng_lib.rst b/doc/guides/prog_guide/pcapng_lib.rst
index cc3eccc757..d18ebdbd1f 100644
--- a/doc/guides/prog_guide/pcapng_lib.rst
+++ b/doc/guides/prog_guide/pcapng_lib.rst
@@ -5,14 +5,14 @@ Packet Capture Next Generation Library
 ======================================
 
 Exchanging packet traces becomes more and more critical every day.
-The de facto standard for this is the format define by libpcap;
+The de facto standard for this is the format defined by libpcap;
 but that format is rather old and is lacking in functionality
 for more modern applications.
 The `Pcapng file format`_ is the default capture file format
 for modern network capture processing tools
 such as `wireshark`_ (can also be read by `tcpdump`_).
 
-The Pcapng library is a an API for formatting packet data
+The Pcapng library is an API for formatting packet data
 into a Pcapng file.
 The format conforms to the current `Pcapng RFC`_ standard.
 It is designed to be integrated with the packet capture library.
@@ -20,9 +20,6 @@ It is designed to be integrated with the packet capture library.
 Usage
 -----
 
-Before the library can be used, the function ``rte_pcapng_init``
-should be called once to initialize timestamp computation.
-
 The output stream is created with ``rte_pcapng_fdopen``,
 and should be closed with ``rte_pcapng_close``.
 
-- 
2.25.1