Fix "exceeding amount_msat" check

[Impa10r]

#355

Replace <= with <

[YusukeShimizu]

Thank you for the revisions.
I believe it’s correct to allow for situations where sp (spendable amount) and rs (receivable amount) are exactly the same.

However, the spendable amount is also checked again when executing PayFeeInvoiceAction. In order to implement the intended changes, wouldn’t the modification also be necessary?

peerswap/swap/actions.go

Line 654 in 178522a

if sp <= requiredBalance {

[Impa10r]

However, the spendable amount is also checked again when executing PayFeeInvoiceAction. In order to implement the intended changes, wouldn’t the modification also be necessary?

peerswap/swap/actions.go

Line 654 in 178522a

if sp <= requiredBalance {

agree, did not notice

[YusukeShimizu]

thank you!