Merge bitcoin/bitcoin#32514: scripted-diff: Remove unused leading newline in RPC docs

fa1f10a49e doc: Fix minor typos in rpc help (MarcoFalke)
fae840e94b rpc: Reject beginning newline in RPC docs (MarcoFalke)
fa414eda08 scripted-diff: Remove unused leading newline in RPC docs (MarcoFalke)

Pull request description:

  It is harmless, but newlines in the beginning read a bit odd ("nReturns"). So just require them to not be present.

  The diff is large, but a trivial scripted-diff.

ACKs for top commit:
  fanquake:
    ACK fa1f10a49e
  w0xlt:
    ACK fa1f10a49e

Tree-SHA512: 5d2f9632f42ec1c02814d050f223941f436e5b0df426d7d6eb93fdd0ff118d57185af07b271dd73af63735dd17231125826c0c9ce0aad36bc8829c5b050a628c

src/wallet/rpc/backup.cpp

@@ -36,8 +36,9 @@ using interfaces::FoundBlock;
 namespace wallet {
 RPCHelpMan importprunedfunds()
 {
-    return RPCHelpMan{"importprunedfunds",
-                "\nImports funds without rescan. Corresponding address or script must previously be included in wallet. Aimed towards pruned wallets. The end-user is responsible to import additional transactions that subsequently spend the imported outputs or rescan after the point in the blockchain the transaction is included.\n",
+    return RPCHelpMan{
+        "importprunedfunds",
+        "Imports funds without rescan. Corresponding address or script must previously be included in wallet. Aimed towards pruned wallets. The end-user is responsible to import additional transactions that subsequently spend the imported outputs or rescan after the point in the blockchain the transaction is included.\n",
                 {
                     {"rawtransaction", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "A raw transaction in hex funding an already-existing address in wallet"},
                     {"txoutproof", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "The hex output from gettxoutproof that contains the transaction"},
@@ -91,8 +92,9 @@ RPCHelpMan importprunedfunds()
 
 RPCHelpMan removeprunedfunds()
 {
-    return RPCHelpMan{"removeprunedfunds",
-                "\nDeletes the specified transaction from the wallet. Meant for use with pruned wallets and as a companion to importprunedfunds. This will affect wallet balances.\n",
+    return RPCHelpMan{
+        "removeprunedfunds",
+        "Deletes the specified transaction from the wallet. Meant for use with pruned wallets and as a companion to importprunedfunds. This will affect wallet balances.\n",
                 {
                     {"txid", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "The hex-encoded id of the transaction you are deleting"},
                 },
@@ -296,9 +298,10 @@ static UniValue ProcessDescriptorImport(CWallet& wallet, const UniValue& data, c
 
 RPCHelpMan importdescriptors()
 {
-    return RPCHelpMan{"importdescriptors",
-                "\nImport descriptors. This will trigger a rescan of the blockchain based on the earliest timestamp of all descriptors being imported. Requires a new wallet backup.\n"
-            "When importing descriptors with multipath key expressions, if the multipath specifier contains exactly two elements, the descriptor produced from the second elements will be imported as an internal descriptor.\n"
+    return RPCHelpMan{
+        "importdescriptors",
+        "Import descriptors. This will trigger a rescan of the blockchain based on the earliest timestamp of all descriptors being imported. Requires a new wallet backup.\n"
+        "When importing descriptors with multipath key expressions, if the multipath specifier contains exactly two elements, the descriptor produced from the second element will be imported as an internal descriptor.\n"
             "\nNote: This call can take over an hour to complete if using an early timestamp; during that time, other rpc calls\n"
             "may report that the imported keys, addresses or scripts exist but related transactions are still missing.\n"
             "The rescan is significantly faster if block filters are available (using startup option \"-blockfilterindex=1\").\n",
@@ -463,7 +466,7 @@ RPCHelpMan listdescriptors()
 {
     return RPCHelpMan{
         "listdescriptors",
-        "\nList descriptors imported into a descriptor-enabled wallet.\n",
+        "List descriptors imported into a descriptor-enabled wallet.\n",
         {
             {"private", RPCArg::Type::BOOL, RPCArg::Default{false}, "Show private descriptors."}
         },
@@ -574,8 +577,9 @@ RPCHelpMan listdescriptors()
 
 RPCHelpMan backupwallet()
 {
-    return RPCHelpMan{"backupwallet",
-                "\nSafely copies the current wallet file to the specified destination, which can either be a directory or a path with a filename.\n",
+    return RPCHelpMan{
+        "backupwallet",
+        "Safely copies the current wallet file to the specified destination, which can either be a directory or a path with a filename.\n",
                 {
                     {"destination", RPCArg::Type::STR, RPCArg::Optional::NO, "The destination directory or file"},
                 },
@@ -610,7 +614,7 @@ RPCHelpMan restorewallet()
 {
     return RPCHelpMan{
         "restorewallet",
-        "\nRestores and loads a wallet from backup.\n"
+        "Restores and loads a wallet from backup.\n"
         "\nThe rescan is significantly faster if a descriptor wallet is restored"
         "\nand block filters are available (using startup option \"-blockfilterindex=1\").\n",
         {