Modernize rdmd's synopsis

rdmd.dd

@@ -5,33 +5,38 @@ $(D_S rdmd,
 $(H2 Synopsis)
 
 In a command prompt:
-<pre>
-% cat myprog.d
+
+$(CONSOLE > cat myprog.d)
+---
 import std.stdio;
 void main()
 {
     writeln("Hello, world without explicit compilations!");
 }
-% rdmd myprog
+---
+$(CONSOLE
+> rdmd myprog
 Hello, world without explicit compilations!
-% <blink>_</blink>
-</pre>
+)
 
 Inside a D program:
-<pre>
-% cat myprog.d
+
+$(CONSOLE > cat myprog.d)
+---
 #!/usr/bin/env rdmd
 import std.stdio;
 void main()
 {
     writeln("Hello, world with automated script running!");
 }
-% ./myprog.d
+---
+
+$(CONSOLE
+> ./myprog.d
 Hello, world with automated script running!
-% <blink>_</blink>
-</pre>
+)
 
-(Under Windows replace $(B cat) with $(B type) and $(B
+$(MESSAGE_BOX gray, $(B Windows): replace $(B cat) with $(B type) and $(B
 #!/usr/bin/env rdmd) with $(B #!rdmd), the latter assuming that $(B rdmd)
 can be found in your path.)
 
@@ -68,8 +73,8 @@ source file does not produce the executable again.)
 
 $(H2 Usage)
 
-$(P
-        $(B rdmd) [$(I dmd and rdmd options)] $(I progfile)[.d] [$(I program arguments)]
+$(CONSOLE
+$(B rdmd) [$(I dmd and rdmd options)] $(I progfile)[.d] [$(I program arguments)]
 )
 
 $(P In addition to $(LINK2 $(ROOT_DIR)dmd.html, `dmd`)'s options, $(B rdmd) recognizes the following:
@@ -88,8 +93,11 @@ compiler (e.g. gdmd) instead of dmd)
 $(DT $(B --dry-run)) $(DD do not compile, just show what commands
 would be run (implies --chatty))
 
-$(DT $(B --eval)=code) $(DD evaluate code including it in $(D_PARAM
-void main(char[][] args) { ... }) (multiple --eval allowed, will be
+$(DT $(B --eval)=code) $(DD evaluate code including it in
+---
+void main(char[][] args) { ... }
+---
+(multiple --eval allowed, will be
 evaluated in turn))
 
 $(DT $(B --exclude)=package) $(DD exclude a package from the build (multiple --exclude allowed))
@@ -104,9 +112,16 @@ necessary)
 $(DT $(B --help)) $(DD show a help message and exit)
 
 $(DT $(B --loop)=code) $(DD like --eval, but code will be additionally
-included in a loop $(D_PARAM foreach (line; stdin.byLine()) { ... }))
+included in a loop
+---
+foreach (line; stdin.byLine()) { ... }
+---
+)
 
-$(DT $(B --main)) $(DD add an empty $(D_PARAM void main() {}) function
+$(DT $(B --main)) $(DD add an empty
+---
+void main() {}
+---
 (useful for running unittests))
 
 $(DT $(B --makedepend)) $(DD print dependencies in makefile format and exit)