/* callsite: run_list */
run_pipe - runs "cmd1 | cmd2 | cmd3 [&]"
- run_list - used if only one cmd and it is of the form "{ cmd4; cmd5 && cmd6; }"
+ run_list - used if only one cmd and it is of the form "{cmds;}"
forks for every cmd if more than one cmd or if & is there
pseudo_exec - runs each "cmdN" (handles builtins etc)
-/* callsite: run_pipe_real */
+/* callsite: run_pipe */
pseudo_exec - runs "cmd" (handles builtins etc)
exec - execs external programs
run_list - used if cmdN is "(cmds)" or "{cmds;}"
## hush does globbing for "VAR=val" too!
## it should do it only for non-assignments.
-## even if word looks like assignment, it can be non-assignemnt:
+## even if word looks like assignment, it can be non-assignment:
## ZVAR=*.map /bin/echo ZVAR=*.map
## ^dont_glob ^glob