[Upstream] Integration error? (cannot parse unusual output format)

My use-case is:
```
x = :x
int(log(x)/x, x, 0, 1) # works fine
int(log(x)/(x - 1), x, 0, 1) # error

ERROR: Reduce:
*hold(limit)$$$$
at line 1

***** Too few right parentheses

- 2*limit!+(( - 2*int(log(x)/(2*x**2 + x),x) + log(x)**2)/4,x,0) - sub(x=1,int(
log(x)/(2*x**2 + x),x)) - 2*pi**2
```