Merge pull request #3815 from gummif/gfa/doc-typo

Problem: Documentation for option name mismatch 

RELICENSE/gummif.md

+# Permission to Relicense under MPLv2 or any other OSI approved license chosen by the current ZeroMQ BDFL
+
+This is a statement by Gudmundur Adalsteinsson that grants permission to
+relicense its copyrights in the libzmq C++ library (ZeroMQ) under the
+Mozilla Public License v2 (MPLv2) or any other Open Source Initiative
+approved license chosen by the current ZeroMQ BDFL (Benevolent
+Dictator for Life).
+
+A portion of the commits made by the Github handle "gummif", with
+commit author "Gudmundur Adalsteinsson <ofpgummi@yahoo.com>", are
+copyright of Gudmundur Adalsteinsson.  This document hereby grants the libzmq
+project team to relicense libzmq, including all past, present and
+future contributions of the author listed above.
+
+Gudmundur Adalsteinsson
+2020/02/04
+

doc/zmq_ctx_get.txt

@@ -39,9 +39,9 @@ The 'ZMQ_MAX_MSGSZ' argument returns the maximum size of a message
 allowed for this context. Default value is INT_MAX.
 
 
-ZMQ_ZERO_COPY_RCV: Get message decoding strategy
+ZMQ_ZERO_COPY_RECV: Get message decoding strategy
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-The 'ZMQ_ZERO_COPY_RCV' argument return whether message decoder uses a zero copy
+The 'ZMQ_ZERO_COPY_RECV' argument return whether message decoder uses a zero copy
 strategy when receiving messages. Default value is 1.
 NOTE: in DRAFT state, not yet available in stable releases.
 

doc/zmq_ctx_set.txt

@@ -127,9 +127,9 @@ Default value:: INT_MAX
 Maximum value:: INT_MAX
 
 
-ZMQ_ZERO_COPY_RCV: Specify message decoding strategy
+ZMQ_ZERO_COPY_RECV: Specify message decoding strategy
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-The 'ZMQ_ZERO_COPY_RCV' argument specifies whether the message decoder should
+The 'ZMQ_ZERO_COPY_RECV' argument specifies whether the message decoder should
 use a zero copy strategy when receiving messages. The zero copy strategy can
 lead to increased memory usage in some cases. This option allows you to use the
 older copying strategy. You can query the value of this option with