ENH: support usage descriptions for command arguments

applications/utilities/mesh/advanced/combinePatchFaces/combinePatchFaces.C

@@ -350,7 +350,11 @@ int main(int argc, char *argv[])
 
     #include "addOverwriteOption.H"
 
-    argList::addArgument("featureAngle [0..180]");
+    argList::addArgument
+    (
+        "featureAngle",
+        "in degrees [0-180]"
+    );
     argList::addOption
     (
         "concaveAngle",
@@ -360,7 +364,7 @@ int main(int argc, char *argv[])
     argList::addBoolOption
     (
         "meshQuality",
-        "Read user-defined mesh quality criterions from system/meshQualityDict"
+        "Read user-defined mesh quality criteria from system/meshQualityDict"
     );
 
     argList::noFunctionObjects();  // Never use function objects
@@ -411,7 +415,7 @@ int main(int argc, char *argv[])
                     IOobject::MUST_READ,
                     IOobject::NO_WRITE
                 )
-           )
+            )
         );
     }
 

applications/utilities/mesh/advanced/refineWallLayer/refineWallLayer.C

@@ -31,7 +31,7 @@ Description
     Refine cells next to specified patches.
 
     Arguments:
-        1: List of patch name regular expressions
+        1: List of patch names or regular expressions
         2: The size of the refined cells as a fraction of the edge-length.
 
     Examples:
@@ -63,13 +63,21 @@ int main(int argc, char *argv[])
 {
     argList::addNote
     (
-        "Refine cells next to specified patches.\n"
-        "The list of patches may contain regular expressions.\n"
+        "Refine cells next to specified patches."
     );
 
     #include "addOverwriteOption.H"
-    argList::addArgument("patches");
-    argList::addArgument("edgeFraction");
+    argList::addArgument
+    (
+        "patches",
+        "The list of patch names or regex - Eg, '(top \"Wall.\")'"
+    );
+    argList::addArgument
+    (
+        "edgeFraction",
+        "The size of the refined cells as a fraction of the edge-length"
+        " on a (0,1) interval"
+    );
 
     argList::addOption
     (

applications/utilities/mesh/advanced/splitCells/splitCells.C

@@ -526,7 +526,11 @@ int main(int argc, char *argv[])
     );
     #include "addOverwriteOption.H"
     argList::noParallel();
-    argList::addArgument("edgeAngle [0..360]");
+    argList::addArgument
+    (
+        "edgeAngle",
+        "in degrees [0-360]"
+    );
 
     argList::addOption
     (