Fix the init value for repl_id of rdbSaveInfo struct (#8026)
Fix the init value for repl_id of rdbSaveInfo struct (#8026)

use 40 zeros rather than 30 zeros to match CONFIG_RUN_ID_SIZE.
this doesn't have any real implications.
oranagra/redis,antirez/redis,ofirluzon/redis,PKRoma/redis,ofirluzon/redis,soloestoy/redis,soloestoy/redis,PKRoma/redis,neomantra/redis,soloestoy/redis,oranagra/redis,antirez/redis,oranagra/redis,ctripcorp/redis,neomantra/redis,ctripcorp/redis,neomantra/redis,yossigo/redis,PKRoma/redis,charsyam/redis,neomantra/redis,PKRoma/redis,soloestoy/redis,ofirluzon/redis,soloestoy/redis,ctripcorp/redis,charsyam/redis,antirez/redis,yossigo/redis,ctripcorp/redis,charsyam/redis,yossigo/redis,antirez/redis,charsyam/redis,yossigo/redis,oranagra/redis,yossigo/redis,oranagra/redis,ofirluzon/redis,ofirluzon/redis,PKRoma/redis,charsyam/redis,neomantra/redis