Index: openacs-4/packages/acs-templating/tcl/captcha-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-templating/tcl/Attic/captcha-procs.tcl,v
diff -u -N -r1.1.2.6 -r1.1.2.7
--- openacs-4/packages/acs-templating/tcl/captcha-procs.tcl	27 Apr 2022 16:43:51 -0000	1.1.2.6
+++ openacs-4/packages/acs-templating/tcl/captcha-procs.tcl	28 Apr 2022 10:59:47 -0000	1.1.2.7
@@ -38,7 +38,7 @@
     set wavelength [expr {round($width * 0.75)}]
     set offset [expr {round($width * rand())}]
 
-    exec $convert \
+    exec [::util::which convert] \
         -size $size \
         -background $background \
         -fill $fill \
@@ -48,7 +48,6 @@
         -chop   ${offset}x0+0+0 \
         $path
 
-
     if {![file exists $path]} {
         error "File '$destination' was not generated"
     }