Fix typos

configure.ac

@@ -931,8 +931,8 @@ if test x$use_pkgconfig = xyes; then
   m4_ifdef(
     [PKG_CHECK_MODULES],
     [
-      PKG_CHECK_MODULES([SSL], [libssl],, [AC_MSG_ERROR(openssl  not found.)])
+      PKG_CHECK_MODULES([SSL], [libssl],, [AC_MSG_ERROR(openssl not found.)])
-      PKG_CHECK_MODULES([CRYPTO], [libcrypto],,[AC_MSG_ERROR(libcrypto  not found.)])
+      PKG_CHECK_MODULES([CRYPTO], [libcrypto],,[AC_MSG_ERROR(libcrypto not found.)])
       BITCOIN_QT_CHECK([PKG_CHECK_MODULES([PROTOBUF], [protobuf], [have_protobuf=yes], [BITCOIN_QT_FAIL(libprotobuf not found)])])
       if test x$use_qr != xno; then
         BITCOIN_QT_CHECK([PKG_CHECK_MODULES([QR], [libqrencode], [have_qrencode=yes], [have_qrencode=no])])

doc/release-process.md

@@ -13,7 +13,7 @@ Before every minor and major release:
 * Update version in `configure.ac` (don't forget to set `CLIENT_VERSION_IS_RELEASE` to `true`)
 * Write release notes (see below)
 * Update `src/chainparams.cpp` nMinimumChainWork with information from the getblockchaininfo rpc.
-* Update `src/chainparams.cpp` defaultAssumeValid  with information from the getblockhash rpc.
+* Update `src/chainparams.cpp` defaultAssumeValid with information from the getblockhash rpc.
   - The selected value must not be orphaned so it may be useful to set the value two blocks back from the tip.
   - Testnet should be set some tens of thousands back from the tip due to reorgs there.
   - This update should be reviewed with a reindex-chainstate with assumevalid=0 to catch any defect

src/chainparams.cpp

@@ -126,7 +126,7 @@ public:
 
         // Note that of those which support the service bits prefix, most only support a subset of
         // possible options.
-        // This is fine at runtime as we'll fall back to using them as a oneshot if they dont support the
+        // This is fine at runtime as we'll fall back to using them as a oneshot if they don't support the
         // service bits we want, but we should get them updated to support all service bits wanted by any
         // release ASAP to avoid it where possible.
         vSeeds.emplace_back("seed.bitcoin.sipa.be"); // Pieter Wuille, only supports x1, x5, x9, and xd

src/protocol.h

@@ -294,7 +294,7 @@ enum ServiceFlags : uint64_t {
  * Thus, generally, avoid calling with peerServices == NODE_NONE, unless
  * state-specific flags must absolutely be avoided. When called with
  * peerServices == NODE_NONE, the returned desirable service flags are
- * guaranteed to not change dependant on state - ie they are suitable for
+ * guaranteed to not change dependent on state - ie they are suitable for
  * use when describing peers which we know to be desirable, but for which
  * we do not have a confirmed set of service flags.
  *

src/streams.h

@@ -82,7 +82,7 @@ class CVectorWriter
  * @param[in]  nVersionIn Serialization Version (including any flags)
  * @param[in]  vchDataIn  Referenced byte vector to overwrite/append
  * @param[in]  nPosIn Starting position. Vector index where writes should start. The vector will initially
- *                    grow as necessary to  max(nPosIn, vec.size()). So to append, use vec.size().
+ *                    grow as necessary to max(nPosIn, vec.size()). So to append, use vec.size().
 */
     CVectorWriter(int nTypeIn, int nVersionIn, std::vector<unsigned char>& vchDataIn, size_t nPosIn) : nType(nTypeIn), nVersion(nVersionIn), vchData(vchDataIn), nPos(nPosIn)
     {

src/sync.cpp

@@ -25,8 +25,8 @@ void PrintLockContention(const char* pszName, const char* pszFile, int nLine)
 //
 // Early deadlock detection.
 // Problem being solved:
-//    Thread 1 locks  A, then B, then C
+//    Thread 1 locks A, then B, then C
-//    Thread 2 locks  D, then C, then A
+//    Thread 2 locks D, then C, then A
 //     --> may result in deadlock between the two threads, depending on when they run.
 // Solution implemented here:
 // Keep track of pairs of locks: (A before B), (A before C), etc.

src/validation.cpp

@@ -2577,7 +2577,7 @@ bool CChainState::ActivateBestChain(CValidationState &state, const CChainParams&
         if (GetMainSignals().CallbacksPending() > 10) {
             // Block until the validation queue drains. This should largely
             // never happen in normal operation, however may happen during
-            // reindex, causing memory blowup  if we run too far ahead.
+            // reindex, causing memory blowup if we run too far ahead.
             SyncWithValidationInterfaceQueue();
         }
 

src/wallet/test/wallet_tests.cpp

@@ -103,7 +103,7 @@ BOOST_AUTO_TEST_CASE(coin_selection_tests)
         // we can't make 3 cents of mature coins
         BOOST_CHECK(!testWallet.SelectCoinsMinConf( 3 * CENT, 1, 6, 0, vCoins, setCoinsRet, nValueRet));
 
-        // we can make 3 cents of new  coins
+        // we can make 3 cents of new coins
         BOOST_CHECK( testWallet.SelectCoinsMinConf( 3 * CENT, 1, 1, 0, vCoins, setCoinsRet, nValueRet));
         BOOST_CHECK_EQUAL(nValueRet, 3 * CENT);
 

test/functional/test_framework/mininode.py

@@ -6,7 +6,7 @@
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Bitcoin P2P network half-a-node.
 
-This python code was modified from ArtForz' public domain  half-a-node, as
+This python code was modified from ArtForz' public domain half-a-node, as
 found in the mini-node branch of http://github.com/jgarzik/pynode.
 
 P2PConnection: A low-level connection object to a node's P2P interface