Pull requests merger

what software or git command will be used to merge the contents of pull requests with the code of the master branch under git clone

Mar.15,2021
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-64f5-1b37205-2adb1.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b37205-2adb1.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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