Fix two -Wimplicit-fallthrough warnings in the murmurhash function:
../src/murmurhash.c: In function 'murmurhash':
../src/murmurhash.c:71:15: warning: this statement may fall through [-Wimplicit-fallthrough=]
71 | case 3: k ^= (tail[2] << 16);
| ~~^~~~~~~~~~~~~~~~~~
../src/murmurhash.c:72:5: note: here
72 | case 2: k ^= (tail[1] << 8);
| ^~~~
../src/murmurhash.c:72:15: warning: this statement may fall through [-Wimplicit-fallthrough=]
72 | case 2: k ^= (tail[1] << 8);
| ~~^~~~~~~~~~~~~~~~~
../src/murmurhash.c:74:5: note: here
74 | case 1:
| ^~~~
Philipp Zabel
Andri Yngvason