scripted-diff: test: Use int.to_bytes over struct packing

-BEGIN VERIFY SCRIPT-
 sed -i --regexp-extended 's!struct.pack\(.<?B., (.*)\)!\1.to_bytes(1, "little")!g'             $( git grep -l struct.pack )
 sed -i --regexp-extended 's!struct.pack\(.<I., (.*)\)!\1.to_bytes(4, "little")!g'              $( git grep -l struct.pack )
 sed -i --regexp-extended 's!struct.pack\(.<H., (.*)\)!\1.to_bytes(2, "little")!g'              $( git grep -l struct.pack )
 sed -i --regexp-extended 's!struct.pack\(.<i., (.*)\)!\1.to_bytes(4, "little", signed=True)!g' $( git grep -l struct.pack )
 sed -i --regexp-extended 's!struct.pack\(.<q., (.*)\)!\1.to_bytes(8, "little", signed=True)!g' $( git grep -l struct.pack )
 sed -i --regexp-extended 's!struct.pack\(.>H., (.*)\)!\1.to_bytes(2, "big")!g'                 $( git grep -l struct.pack )
-END VERIFY SCRIPT-

2 files changed, 5 insertions, 5 deletions

diff --git a/contrib/seeds/generate-seeds.py b/contrib/seeds/generate-seeds.py
index e921757802..c84be1055d 100755
--- a/contrib/seeds/generate-seeds.py
+++ b/contrib/seeds/generate-seeds.py
@@ -115,7 +115,7 @@ def parse_spec(s):
 def ser_compact_size(l):
     r = b""
     if l < 253:
-        r = struct.pack("B", l)
+        r = l.to_bytes(1, "little")
     elif l < 0x10000:
         r = struct.pack("<BH", 253, l)
     elif l < 0x100000000:
@@ -129,10 +129,10 @@ def bip155_serialize(spec):
     Serialize (networkID, addr, port) tuple to BIP155 binary format.
     '''
     r = b""
-    r += struct.pack('B', spec[0].value)
+    r += spec[0].value.to_bytes(1, "little")
     r += ser_compact_size(len(spec[1]))
     r += spec[1]
-    r += struct.pack('>H', spec[2])
+    r += spec[2].to_bytes(2, "big")
     return r
 
 def process_nodes(g, f, structname):
diff --git a/contrib/signet/miner b/contrib/signet/miner
index e5daf9f993..7b7b3feb39 100755
--- a/contrib/signet/miner
+++ b/contrib/signet/miner
@@ -52,10 +52,10 @@ def signet_txs(block, challenge):
     mroot = block.get_merkle_root(hashes)
 
     sd = b""
-    sd += struct.pack("<i", block.nVersion)
+    sd += block.nVersion.to_bytes(4, "little", signed=True)
     sd += ser_uint256(block.hashPrevBlock)
     sd += ser_uint256(mroot)
-    sd += struct.pack("<I", block.nTime)
+    sd += block.nTime.to_bytes(4, "little")
 
     to_spend = CTransaction()
     to_spend.nVersion = 0