refactor(memory-usage): fetch top items on Windows again

Author: markuslf

check-plugins/memory-usage/README.md

@@ -40,8 +40,7 @@ options:
   -c, --critical CRIT  Set the critical threshold for memory usage (in
                        percent). Default: 95
   --top TOP            List x "Top most memory consuming processes". Use
-                       `--top=0` to disable this feature. Default: 5 on Linux,
-                       0 on Windows
+                       `--top=0` to disable this feature. Default: 5
   -w, --warning WARN   Set the warning threshold for memory usage (in
                        percent). Default: 90
 ```

check-plugins/memory-usage/icingaweb2-module-director/memory-usage.json

@@ -240,7 +240,7 @@
         "3": {
             "varname": "memory_usage_top",
             "caption": "Memory Usage: Top",
-            "description": "List x \"Top most memory consuming processes\". Use `--top=0` to disable this feature. Default: 5 on Linux, 0 on Windows",
+            "description": "List x \"Top most memory consuming processes\". Use `--top=0` to disable this feature.",
             "datatype": "Icinga\\Module\\Director\\DataType\\DataTypeString",
             "format": null,
             "settings": {
@@ -282,7 +282,7 @@
         "7": {
             "varname": "memory_usage_windows_top",
             "caption": "Memory Usage: Top",
-            "description": "List x \"Top most memory consuming processes\". Use `--top=0` to disable this feature. Default: 5 on Linux, 0 on Windows",
+            "description": "List x \"Top most memory consuming processes\". Use `--top=0` to disable this feature.",
             "datatype": "Icinga\\Module\\Director\\DataType\\DataTypeString",
             "format": null,
             "settings": {

check-plugins/memory-usage/memory-usage

@@ -27,7 +27,7 @@ except ImportError:
 
 
 __author__ = 'Linuxfabrik GmbH, Zurich/Switzerland'
-__version__ = '2025090701'
+__version__ = '2025090703'
 
 DESCRIPTION = """Displays system memory usage and alerts on sustained high usage.
 Reports total/used/available/free plus shared/buffers/cached, and evaluates WARN/CRIT
@@ -37,7 +37,7 @@ graph trends over time. With `--top`, the most memory-consuming processes are li
 systems (Linux, Windows, *BSD, macOS)."""
 
 DEFAULT_CRIT = 95  # %
-DEFAULT_TOP = 0 if lib.base.WINDOWS else 5
+DEFAULT_TOP = 5
 DEFAULT_WARN = 90  # %
 
 
@@ -73,7 +73,7 @@ def parse_args():
         '--top',
         help='List x "Top most memory consuming processes". '
              'Use `--top=0` to disable this feature. '
-             'Default: 5 on Linux, 0 on Windows',
+             'Default: %(default)s',
         dest='TOP',
         type=int,
         default=DEFAULT_TOP,