Remove dependency to try_modulefile of cmdModuleUnload

The try_modulefile state does not impact the cmdModuleUnload procedure
as the only kind of error reported here is when an empty module name is
specified. Such error should be reported whatever the try_modulefile
state.

Author: xdelaruelle

tcl/subcmd.tcl.in

@@ -1197,14 +1197,13 @@ proc cmdModuleUnload {context match auto force onlyureq onlyndep args} {
       # unloading module is visible by default
       set hidden 0
       set uasked 1
-      # error if module not found or forbidden
-      set notfounderr [expr {![currentState try_modulefile]}]
 
       # record evaluation attempt on specified module name
       registerModuleEvalAttempt $context $mod
       # resolve by also looking at matching loaded module and update mod
       # specification to fully match obtained loaded module
-      lassign [getPathToModule $mod {} $notfounderr $match] modfile modname\
+      # enable report_issue flag to report empty module name issue
+      lassign [getPathToModule $mod {} 1 $match] modfile modname\
          modnamevr errkind
 
       # set a unique id to record messages related to this evaluation.
@@ -1242,7 +1241,8 @@ proc cmdModuleUnload {context match auto force onlyureq onlyndep args} {
                   2]"
             }
          } else {
-            set ret $notfounderr
+            # return error code in case of empty module name
+            set ret 1
          }
          # go to next module to unload
          continue