pgsql: Teach appendShellString() to not quote strings containing "-".

Teach appendShellString() to not quote strings containing "-".

Brain fade in commit a00c58314: I was thinking that a string starting with
"-" could be taken as a switch depending on command line syntax.  That's
true, but having appendShellString() quote it will not help, so we may as
well not do so.  Per complaint from Peter Eisentraut.

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/cdc70597c9ba62aad08a46e55c0c783bf4c21c9c

Modified Files
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src/fe_utils/string_utils.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)