[PATCH] Add a portable implementation of getline to src/common.

[Andrei Kholodnyi]

here are my comments.

+#ifndef SPD_UTILS_H
+#define SPD_UTILS_H
+ssize_t spd_getline(char **lineptr, size_t * n, FILE * f);
+#endif /* SPD_UTILS_H */

includes should be added since size_t and FILE are used
#include <stdio.h>
#include <stddef.h>

+ * getline.c - portable implementation of getline
spd_getline.c, not getline.c

and I'd rather rename source file into spd_getline.c to follow function naming.