Wrap tags generated on custom branches in underscores #2027

Job	Run time
macOS [UBSAN] [lmdb \| clang]	33m 9s
Linux [UBSAN] [lmdb \| clang]	38m 8s
macOS [ASAN] [lmdb \| clang]	34m 35s
Linux [ASAN] [lmdb \| clang]	37m 55s
macOS [TSAN] [lmdb \| clang]	30m 19s
Linux [ASAN_INT] [lmdb \| clang] (Errors Ignored)	41m 52s
macOS [UBSAN] [rocksdb \| clang]	37m 52s
Linux [TSAN] [lmdb \| clang]	38m 52s
macOS [ASAN] [rocksdb \| clang]	39m 12s
Linux [LEAK] [lmdb \| clang] (Errors Ignored)	38m 38s
macOS [TSAN] [rocksdb \| clang]	50m 31s
Linux [UBSAN] [rocksdb \| clang]	44m 45s
Linux [ASAN] [rocksdb \| clang]	50m 5s
Linux [ASAN_INT] [rocksdb \| clang] (Errors Ignored)	50m 43s
Linux [LEAK] [rocksdb \| clang] (Errors Ignored)	48m 34s
	10h 15m 10s

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