K&R-style `else` formatting

[mashehu]

Any chance that instead of the current Allman style:

}
else {

we could get K&R style:

} else {

Coming from javascript/python, I had problems parsing the newer version as connected to the previous if statement.
Groovy seems to follow K&R in its style guide https://groovy-lang.org/style-guide.html#_return_keyword_optional

An example of the switch from K&R to Allman style: https://github.com/nf-core/tools/pull/4135/changes#diff-61257db195c5fed111b4969db3e5604b80dc9f17c22edd1fde7bead023488fd7R65-R68