Remove extra log statement, reorder changelog

ref #1753

docs/changelog.txt

@@ -35,9 +35,9 @@ changelog.txt uses a syntax similar to RST, with a few special sequences:
 
 ## Fixes
 - `embark-assistant`: fixed order of factors when calculating min temperature
-- `seedwatch`: don't turn off upon map load
 - `embark-assistant`: improved performance of surveying
 - `quickfort`: creating zones no longer causes eventual crashes
+- `seedwatch`: fixed an issue where the plugin would disable itself on map load
 - `search`: fixed crash when searching the ``k`` sidebar and navigating to another tile with certain keys, like ``<`` or ``>``
 - `stockflow`: fixed ``j`` character being intercepted when naming stockpiles
 

plugins/seedwatch.cpp

@@ -296,18 +296,10 @@ DFhackCExport command_result plugin_init(color_ostream &out, vector<PluginComman
 
 DFhackCExport command_result plugin_onstatechange(color_ostream &out, state_change_event event)
 {
-    switch (event) {
+    if (event == SC_MAP_UNLOADED) {
-    case SC_MAP_LOADED:
-        if(running)
-            out.print("seedwatch supervision started.\n");
-        break;
-    case SC_MAP_UNLOADED:
         if (running)
-            out.printerr("seedwatch deactivated due to game unload\n");
+            out.print("seedwatch deactivated due to game unload\n");
         running = false;
-        break;
-    default:
-        break;
     }
 
     return CR_OK;