Limit line.Split in Reload()

Limiting the maximum number of returned substrings to 2 allows for string values to contain the `=` character without affecting other functionality.

BepInEx/Configuration/ConfigFile.cs

@@ -118,7 +118,7 @@ namespace BepInEx.Configuration
 						continue;
 					}
 
-					string[] split = line.Split('='); //actual config line
+					string[] split = line.Split(new [] { '=' }, 2); //actual config line
 					if (split.Length != 2)
 						continue; //empty/invalid line
 
@@ -555,4 +555,4 @@ namespace BepInEx.Configuration
 			}
 		}
 	}
-}
+}