Reads a line from a #GIOChannel, using a #GString as a buffer.
a #GString into which the line will be written. If @buffer already contains data, the old data will be overwritten.
location to store position of line terminator, or %NULL
Return: the status of the operation.
GException on failure.
See Implementation
Reads a line from a #GIOChannel, using a #GString as a buffer.