Allow using tuples as well as lists for StrArray

Author: Legorooj

pygit2/utils.py

@@ -86,7 +86,7 @@ def __init__(self, l):
             self.array = ffi.NULL
             return
 
-        if not isinstance(l, list):
+        if not isinstance(l, (list, tuple)):
             raise TypeError("Value must be a list")
 
         strings = [None] * len(l)