testnet script minor fix

scripts/run-test-chain.sh

@@ -1,8 +1,8 @@
 #!/bin/bash
 cargo run --release -p joystream-node build-spec --chain dev > chainspec.json
 sed -i 's/"setValidatorCountProposalGracePeriod":.*/"setValidatorCountProposalGracePeriod": 0,/' chainspec.json
-sed -i 's/"runtimeUpgradeProposalGracePeriod":.*/"runtimeUpgradeProposalGracePeriod": 0,/' ./chainspec.json
-sed -i 's/"setElectionParametersProposalGracePeriod":.*/"setElectionParametersProposalGracePeriod": 0,/' ./chainspec.json
+sed -i 's/"runtimeUpgradeProposalGracePeriod":.*/"runtimeUpgradeProposalGracePeriod": 0,/' chainspec.json
+sed -i 's/"setElectionParametersProposalGracePeriod":.*/"setElectionParametersProposalGracePeriod": 0,/' chainspec.json
 sed -i 's/"textProposalGracePeriod":.*/"textProposalGracePeriod": 0,/' chainspec.json
 sed -i 's/"setContentWorkingGroupMintCapacityProposalGracePeriod":.*/"setContentWorkingGroupMintCapacityProposalGracePeriod": 0,/' chainspec.json
 sed -i 's/"setLeadProposalGracePeriod":.*/"setLeadProposalGracePeriod": 0,/' chainspec.json