Fix typos in libgnucash/

Found via `codespell -q 3 -L ans,ba,parm,parms,numer`

libgnucash/backend/dbi/gnc-backend-dbi.cpp

@@ -651,7 +651,7 @@ GncDbiBackend<Type>::session_begin (QofSession* session, const char* new_uri,
             uri.m_portnum = PGSQL_DEFAULT_PORT;
         /* Postgres's SQL interface coerces identifiers to lower case, but the
          * C interface is case-sensitive. This results in a mixed-case dbname
-         * being created (with a lower case name) but then dbi can't conect to
+         * being created (with a lower case name) but then dbi can't connect to
          * it. To work around this, coerce the name to lowercase first. */
         auto lcname = g_utf8_strdown (uri.dbname(), -1);
         uri.m_dbname = std::string{lcname};

libgnucash/backend/dbi/gnc-backend-dbi.h

@@ -40,7 +40,7 @@ void gnc_module_init_backend_dbi (void);
 void gnc_module_finalize_backend_dbi (void);
 
 #ifndef GNC_NO_LOADABLE_MODULES
-/** This is the standarized initialization function of a qof_backend
+/** This is the standardized initialization function of a qof_backend
  * GModule, but compiling this can be disabled by defining
  * GNC_NO_LOADABLE_MODULES. */
 G_MODULE_EXPORT void qof_backend_module_init (void);

libgnucash/backend/sql/escape.cpp

@@ -22,7 +22,7 @@
 
 /*
  * FILE:
- * esacpe.c
+ * escape.c
  *
  * FUNCTION:
  * Escapes the ' and \ characters in a string

libgnucash/backend/xml/gnc-account-xml-v2.cpp

@@ -322,7 +322,7 @@ deprecated_account_security_handler (xmlNodePtr node, gpointer act_pdata)
 
     PWARN ("Account %s: Obsolete xml tag 'act:security' will not be preserved.",
            xaccAccountGetName (pdata->account));
-    /* If the account has both a commodity and a security elemet, and
+    /* If the account has both a commodity and a security element, and
        the commodity is a currecny, then the commodity is probably
        wrong. In that case we want to replace it with the
        security. jralls 2010-11-02 */

libgnucash/backend/xml/gnc-backend-xml.h

@@ -60,7 +60,7 @@ typedef enum
 void gnc_module_init_backend_xml (void);
 
 #ifndef GNC_NO_LOADABLE_MODULES
-/** This is the standarized initialization function of a qof_backend
+/** This is the standardized initialization function of a qof_backend
  * GModule, but compiling this can be disabled by defining
  * GNC_NO_LOADABLE_MODULES. This one simply calls
  * gnc_module_init_backend_file(). */

libgnucash/backend/xml/gnc-book-xml-v2.cpp

@@ -132,7 +132,7 @@ book_slots_handler (xmlNodePtr node, gpointer book_pdata)
     QofBook* book = static_cast<decltype (book)> (book_pdata);
     gboolean success;
 
-    /* the below works only because the get is gaurenteed to return
+    /* the below works only because the get is guaranteed to return
      * a frame, even if its empty */
     success = dom_tree_create_instance_slots (node, QOF_INSTANCE (book));
 

libgnucash/backend/xml/io-gncxml-v2.cpp

@@ -1619,7 +1619,7 @@ gnc_book_write_to_xml_file_v2 (
 /*
  * Have to pass in the backend as this routine needs the temporary
  * backend for file export, not the real backend which could be
- * postgress or anything else.
+ * postgresql or anything else.
  */
 gboolean
 gnc_book_write_accounts_to_xml_file_v2 (QofBackend* qof_be, QofBook* book,

libgnucash/backend/xml/test/test-files/xml1/every.gml

@@ -1283,7 +1283,7 @@
         </date-entered>
         <split>
           <guid>96d4d8f635a24068e09c73e6fb953539</guid>
-          <memo>Begining balance</memo>
+          <memo>Beginning balance</memo>
           <reconcile-state>n</reconcile-state>
           <value>1035/1</value>
           <quantity>103534000/100000</quantity>

libgnucash/backend/xml/test/test-files/xml2/every.gml2

@@ -1260,7 +1260,7 @@
   <trn:splits>
     <trn:split>
       <split:id type="guid">96d4d8f635a24068e09c73e6fb953539</split:id>
-      <split:memo>Begining balance</split:memo>
+      <split:memo>Beginning balance</split:memo>
       <split:reconciled-state>n</split:reconciled-state>
       <split:value>103534000/100000</split:value>
       <split:quantity>103534000/100000</split:quantity>