Getting rid of function keyword for two reasons:
1. Defining a function without 'function' keyword is more
portable as it is compatible with Bourne/Korn/POSIX scripts
2. To ensure the coding style is same for the file.
Signed-off-by: Yug <yuggupta27@gmail.com>
(cherry picked from commit e47738fa75093db3b2b2e5a04e4184bacee63e74)