feat(commands): backup: Add option --long (#1159) #851

Job	Run time
Cross checking x86_64-pc-windows-msvc	11m 6s
Cross checking x86_64-pc-windows-gnu	4m 55s
Cross checking x86_64-apple-darwin	31s
Cross checking aarch64-apple-darwin	1m 46s
Cross checking x86_64-unknown-linux-gnu	29s
Cross checking x86_64-unknown-linux-musl	4m 50s
Cross checking aarch64-unknown-linux-gnu	5m 29s
Cross checking i686-unknown-linux-gnu	5m 43s
Cross checking x86_64-unknown-netbsd	5m 44s
Cross checking armv7-unknown-linux-gnueabihf	6m 1s
Result (Cross-CI)	1s
	46m 35s

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