Update c++-abbreviations.vim
Update c++-abbreviations.vim

Remove space in Vim abbrev `for (auto & i SPACE:)`

Signed-off-by: Karel Ha <70f8965fdfb04f1fc0e708a55d9e822c449f57d3@gmail.com>

mathemage/CompetitiveProgramming,mathemage/CompetitiveProgramming,mathemage/CompetitiveProgramming,mathemage/CompetitiveProgramming,mathemage/CompetitiveProgramming,mathemage/CompetitiveProgramming