add option to let Mage generate initial condition

src/Solver/Mage.py

@@ -36,7 +36,7 @@ def mage_file_open(filepath, mode):
 
     if "w" in mode:
         # Write header
-        f.write("* This file is generate by PAMHYR, please don't modify\n")
+        f.write("* This file is generated by PAMHYR, please don't modify\n")
 
     return f
 
@@ -81,6 +81,7 @@ class Mage(CommandLineSolver):
             ("mage_compute_reach_volume_balance", "y"),
             ("mage_max_reach_volume_balance", "0.001"),
             ("mage_min_reach_volume_to_check", "1000.0"),
+            ("mage_init_internal", " "),
         ]
 
         return lst
@@ -721,8 +722,11 @@ class Mage8(Mage):
                 if name in ["command_line_arguments"]:
                     continue
 
-                if name == "mage_compute_reach_volume_balance":
-                    value = "O" if value == "y" else "N"
+                if name == "compute_reach_volume_balance":
+                    value = "O" if value.lower() == "y" else "N"
+
+                if name == "init_internal":
+                    value = "p" if value.lower() in ["y","yes","true"] else ""
 
                 f.write(f"{name} {value}\n")