fix badcase for empty files

雾聪

2023-06-25 57558b4a7df571dd74dc1e23b694a23bb63249f4

1
2
3
4
5
6
7
8
9
10
11
12
jan    january
feb    february
mar    march
apr    april
jun    june
jul    july
aug    august
sep    september
sept    september
oct    october
nov    november
dec    december