[gnome-builder] plugin: rstcheck: Fix typo and provide file object

[Christian Hergert <chergert src gnome org>]

commit e8e2a7818fabce5f0d2811ab1c5ead6f569e62c3
Author: Veli Tasalı <veli tasali gmail com>
Date:   Sun Jan 23 13:21:50 2022 +0300

    plugin: rstcheck: Fix typo and provide file object
    
    After the migration to DiagnosticTool, rstcheck
    stopped working. This fixes it and some typos
    (e.g., stdin should be stdout).

 src/plugins/rstcheck/rstcheck_plugin.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/plugins/rstcheck/rstcheck_plugin.py b/src/plugins/rstcheck/rstcheck_plugin.py
index 7a3b153b2..2b5b59bd8 100644
--- a/src/plugins/rstcheck/rstcheck_plugin.py
+++ b/src/plugins/rstcheck/rstcheck_plugin.py
@@ -22,7 +22,7 @@ class RstcheckDiagnosticProvider(Ide.DiagnosticTool):
         # rstcheck - signifies that stdin will be used
         launcher.push_argv('-')
 
-    def do_propulate_diagnostics(self, diagnostics, stdin, stderr):
+    def do_populate_diagnostics(self, diagnostics, file, stdout, stderr):
         try:
             if stderr is None or len(stderr) < 1:
                 return