comment clean-up

src/thermophysicalModels/basic/psiThermo/ePsiThermo/ePsiThermo.H

@@ -87,13 +87,13 @@ public:
 
     // Member functions
 
-        //- Return the compostion of the combustion mixture
+        //- Return the compostion of the mixture
         virtual basicMixture& composition()
         {
             return *this;
         }
 
-        //- Return the compostion of the combustion mixture
+        //- Return the compostion of the mixture
         virtual const basicMixture& composition() const
         {
             return *this;

src/thermophysicalModels/basic/psiThermo/hPsiThermo/hPsiThermo.H

@@ -87,13 +87,13 @@ public:
 
     // Member functions
 
-        //- Return the compostion of the combustion mixture
+        //- Return the compostion of the mixture
         virtual basicMixture& composition()
         {
             return *this;
         }
 
-        //- Return the compostion of the combustion mixture
+        //- Return the compostion of the mixture
         virtual const basicMixture& composition() const
         {
             return *this;