smichr/sympy — comment on commit 7c1df784816e16ae9a4741ed8a52f015490f1b60
File:  line 0
By smichr:

As you noted before, fixing up docstrings can be another PR...I'm taking
care of one level of corrections.

The '-', btw, refers to a line that was removed (in this case, a blank
line, I believe).