Add documentation

doc/man/julia.1

@@ -290,6 +290,10 @@ Methods that were recompiled are printed in yellow or with a trailing comment if
 --trace-compile-timing=
 If --trace-compile is enabled show how long each took to compile in ms
 
+.TP
+--trace-dispatch={stderr|name}
+Print precompile statements for methods dispatched during execution or save to stderr or a path.
+
 .TP
 -image-codegen
 Force generate code in imaging mode

doc/src/manual/command-line-interface.md

@@ -216,6 +216,7 @@ The following is a complete list of command-line switches available when launchi
 |`--output-incremental={yes\|no*}`      |Generate an incremental output file (rather than complete)|
 |`--trace-compile={stderr\|name}`       |Print precompile statements for methods compiled during execution or save to stderr or a path. Methods that were recompiled are printed in yellow or with a trailing comment if color is not supported|
 |`--trace-compile-timing`               |If --trace-compile is enabled show how long each took to compile in ms|
+|`--trace-dispatch={stderr\|name}`      |Print precompile statements for methods dispatched during execution or save to stderr or a path.|
 |`--image-codegen`                      |Force generate code in imaging mode|
 |`--permalloc-pkgimg={yes\|no*}`        |Copy the data section of package images into memory|