Escape * in build-debug before passing to debug

With `setopt nonomatch` unescaped `*` can be used in command arguments
however when passing command arguments to `build-debug` the `*` _should_
be escaped so that the debugger e.g. `gdb` will correctly invoke the
program where `setopt nonomatch` does not apply.

build/build.plugin.zsh

@@ -8,7 +8,16 @@ alias build="build-dir --build"
 # command line arguments.
 if [ `uname` = Linux ]; then
   if [[ "`vim --version`" =~ "^VIM - Vi IMproved 8\.1.*$" ]]; then
-    function vimdebug() { vim "+packadd termdebug" "+TermdebugCommand $*" }
+    autoload -U regexp-replace
+    function vimdebug() {
+      # For each item in $* replace * and \* and then replace \ with \\
+      local args=()
+      for arg in "$@"; do
+        regexp-replace arg '\*' '\\*'
+        args+=($arg)
+      done
+      vim "+packadd termdebug" "+TermdebugCommand $args"
+    }
     alias debug='vimdebug'
   elif which cgdb &> /dev/null; then
     alias debug='cgdb --args'
@@ -171,12 +180,5 @@ build-run() {
 # Build then debug a target residing in `~build/bin`.
 build-debug() {
   local target=$1; shift 1
-  # For each item in $* replace * and \* and then replace \ with \\
-  autoload -U regexp-replace
-  local args=()
-  for arg in "$@"; do
-    regexp-replace arg '\*' '\\*'
-    args+=($arg)
-  done
-  eval build $target && debug ~build/bin/$target $args
+  eval build $target && debug ~build/bin/$target "$@"
 }