FEM: typos in comments

src/Mod/Fem/femobjects/_FemResultMechanical.py

@@ -303,7 +303,7 @@ class _FemResultMechanical():
 
     def onDocumentRestored(self, obj):
         # migrate old result objects, because property "StressValues"
-        # was renamed to "vonMises" wirh commit 8b68ab7
+        # was renamed to "vonMises" in commit 8b68ab7
         if hasattr(obj, "StressValues") is True:
             obj.addProperty(
                 "App::PropertyFloatList",

src/Mod/Fem/femsolver/calculix/tasks.py

@@ -61,7 +61,7 @@ class Prepare(run.Prepare):
         w = writer.FemInputWriterCcx(
             self.analysis,
             self.solver,
-            femutils.get_mesh_to_solve(self.analysis)[0],  # pre check hast been done already
+            femutils.get_mesh_to_solve(self.analysis)[0],  # pre check has been done already
             c.materials_linear,
             c.materials_nonlinear,
             c.constraints_fixed,

src/Mod/Fem/femsolver/z88/tasks.py

@@ -55,7 +55,7 @@ class Prepare(run.Prepare):
         w = writer.FemInputWriterZ88(
             self.analysis,
             self.solver,
-            femutils.get_mesh_to_solve(self.analysis)[0],  # pre check hast been done already
+            femutils.get_mesh_to_solve(self.analysis)[0],  # pre check has been done already
             c.materials_linear,
             c.materials_nonlinear,
             c.constraints_fixed,