ENH: improve handling of wmakeLnIncludeAll default search directories

- if called from the top-level project directory ($WM_PROJECT_DIR)
  default to using {applications,src} directories. This avoids
  erroneous linking of etc/codeTemplates and avoids the lengthy
  scanning of the tutorials directory

wmake/wmakeLnIncludeAll

@@ -29,7 +29,7 @@
 #     wmakeLnIncludeAll [dir1 .. dirN]
 #
 # Description
-#     Find directories with a 'Make/files' that contains a 'LIB =' directive
+#     Find directories with a 'Make/files' containing a 'LIB =' directive
 #     and execute 'wmakeLnInclude' for each one
 #
 #------------------------------------------------------------------------------
@@ -46,7 +46,7 @@ options:
   -jN or -j N       Compile using N cores/hyperthreads
   -h | -help        Print the usage
 
-Find directories with a 'Make/files' that contains a 'LIB =' directive
+Find directories with a 'Make/files' containing a 'LIB =' directive
 and execute 'wmakeLnInclude -update' for each one
 
 USAGE
@@ -93,6 +93,18 @@ do
     shift
 done
 
+# Default search is from CWD, with special handling of the top-level
+# project directory: {applications,src} directories
+if [ "$#" -eq 0 ]
+then
+    if wmakeCheckPwd "$WM_PROJECT_DIR" 2>/dev/null
+    then
+        set -- applications src
+    else
+        set -- .
+    fi
+fi
+
 if [ "$nCores" -gt 0 ]
 then
     echo "$Script: starting wmakeLnInclude processes on $nCores cores"
@@ -100,10 +112,6 @@ else
     echo "$Script: running wmakeLnInclude"
 fi
 
-
-# Defaults to searching from CWD
-[ "$#" -gt 0 ] || set -- .
-
 for checkDir
 do
     if [ -d $checkDir ]
@@ -114,7 +122,7 @@ do
         continue
     fi
 
-    find $checkDir -depth -type d -name Make -print | while read MakeDir
+    find $checkDir -depth -name Make -type d -print | while read MakeDir
     do
         topDir=${MakeDir%/Make}    # trim /Make from the end
         if [ -d "$topDir" ]