奇数行和偶数行合并为一行：
Like:
Sequence number: 5398
Sequence name: Glyma.16G123500.1
Sequence number: 5399
Sequence name: Glyma.16G169500.1
Sequence number: 5400
Sequence name: Glyma.16G113000.1
Sequence number: 5401
Sequence name: Glyma.16G176800.1
Sequence number: 5402
Sequence name: Glyma.U002300.1
Sequence number: 5403
Sequence name: Glyma.U002100.1
--- >
Sequence number: 5398 Sequence name: Glyma.16G123500.1
Sequence number: 5399 Sequence name: Glyma.16G169500.1
Sequence number: 5400 Sequence name: Glyma.16G113000.1
Sequence number: 5401 Sequence name: Glyma.16G176800.1
Sequence number: 5402 Sequence name: Glyma.U002300.1
Sequence number: 5403 Sequence name: Glyma.U002100.1
sed '$!N;s/\n/ /' GeneIDMaps.txt