lib: use bracket notation instead of startsWith/endsWith for single char
#2614
| Job | Run time |
|---|---|
| 1m 33s | |
| 36m 15s | |
| 28m 18s | |
| 27m 59s | |
| 22m 16s | |
| 1h 56m 21s |
startsWith/endsWith for single char
#2614
| Job | Run time |
|---|---|
| 1m 33s | |
| 36m 15s | |
| 28m 18s | |
| 27m 59s | |
| 22m 16s | |
| 1h 56m 21s |