Merge pull request #408 from libgit2/fix-strarray-bridging

Don’t try to add `nil` strings to an array.

Author: joshaber

Classes/Categories/NSArray+StringArray.m

@@ -22,7 +22,13 @@ + (instancetype)git_arrayWithStrarray:(git_strarray)strarray {
 		const char *cStr = strarray.strings[i];
 		if (cStr == NULL) continue;
 
-		strings[stringsCount++] = @(cStr);
+		NSUInteger length = strlen(cStr);
+		NSString *string =
+			[[NSString alloc] initWithBytes:cStr length:length encoding:NSUTF8StringEncoding]
+		?:	[[NSString alloc] initWithBytes:cStr length:length encoding:NSASCIIStringEncoding];
+		if (string == nil) continue;
+
+		strings[stringsCount++] = string;
 	}
 
 	@onExit {