fix -nonewline screen output for runx

src/modules/shellrun-0.1.tm

@@ -338,14 +338,24 @@ namespace eval shellrun {
 
         set chunk ""
         if {[string length $::shellrun::runout]} {
-            append chunk "$::shellrun::runout\n"
+            if {$nonewline} {
+                set o [string trimright $::shellrun::runout \r\n]
+            } else {
+                set o $::shellrun::runout
+            }
+            append chunk $o\n
         }
         lappend chunklist [list stdout $chunk]
 
 
         set chunk "[a+ red bold]stderr[a+]\n"
         if {[string length $::shellrun::runerr]} {
-            append chunk "$::shellrun::runerr\n"
+            if {$nonewline} {
+                set e [string trimright $::shellrun::runerr \r\n]
+            } else {
+                set e $::shellrun::runerr
+            }
+            append chunk $e\n
         }
         lappend chunklist [list stderr $chunk]