debloat code that depends on /proc/self/fd/%d with shared function

[musl] / src / internal / procfdname.c

void __procfdname(char *buf, unsigned fd)
{
        unsigned i, j;
        for (i=0; (buf[i] = "/proc/self/fd/"[i]); i++);
        if (!fd) {
                buf[i] = '0';
                buf[i+1] = 0;
                return;
        }
        for (j=fd; j; j/=10, i++);
        buf[i] = 0;
        for (; fd; fd/=10) buf[--i] = '0' + fd%10;
}