[PATCH] libpq: Fix incorrect message type in getBackendKeyData() comment

[zourenli]

Hi all,  


This is a trivial fix for the comment of getBackendKeyData() function in 
fe-protocol3.c.  
The comment incorrectly stated that the BackendKeyData message type is 'v', 
when in fact it is 'K' as defined in protocol.h. This fix corrects the comment 
to match the actual message type used in the protocol.  
No functional changes are involved.  


Patch is attached below.  


Thanks,  
zourenli  
<398740...@qq.com&gt;

v1-0001-fix-incorrect-message-type-in-getBackendKeyData-comment.patch
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