How does Atom modify the settings of the auto-completion plug-in?

I now click on the c file and want to enter a main function. After entering main, I click enter to have an automatic completion main frame.
however, the parameter table of this main is not empty but has some inexplicable parameters. I want to set it to empty. I can"t find any change for a long time.

Mar.31,2021
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b335cf-2be95.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b335cf-2be95.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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