Avoid -Wmisleading-indentation warnings with GCC 6.

Avoid -Wmisleading-indentation warnings with GCC 6.

GCC 6 warns about potentially misleading indentation, such as:

    if (condition) stmt1; stmt2;

Chaining multiple ifs on a single line runs into this warning, even if
it's probably not actually misleading to a human eye, so just add a
couple of newlines to pacify the compiler.