Change lev_comp's add_opvars() to be like pline(), where there's a
single visible opening brace and a second one hidden in VA_DECL2
that introduces a nested block, plus a single visible closing brace
with a hidden one in VA_END() to close the nested block. This
addresses the erroneous report (sent directly to devteam, so no #H
number, subject "missing '{' in util/lev_main.c:634") that the code
for !USE_STDARG/!USE_VARARGS in add_opvars() wouldn't compile.
Also, fix the part of "#H5778: file descriptor leaks" dealing with
util/recover.c -- an open file not being closed after various errors.
I didn't take responsibility for this entry in the bugzilla list
since the report includes similar problems in other code that's not
addressed here.
And a blast from the past: some reformatting fixups in recover.c.
The most interesting bit is for a block of dead code....
e3c4ac730d