chore: remove repetitive words

Signed-off-by: growfrow <growfrow@outlook.com>

bypy/windows/XUnzip.cpp

@@ -3072,7 +3072,7 @@ unzFile unzOpenInternal(LUFILE *fin)
   uLong number_disk;          // number of the current dist, used for spanning ZIP, unsupported, always 0
   if (unzlocal_getShort(fin,&number_disk)!=UNZ_OK) err=UNZ_ERRNO;
   // number of the disk with the start of the central directory
-  uLong number_disk_with_CD;  // number the the disk with central dir, used for spanning ZIP, unsupported, always 0
+  uLong number_disk_with_CD;  // number the disk with central dir, used for spanning ZIP, unsupported, always 0
   if (unzlocal_getShort(fin,&number_disk_with_CD)!=UNZ_OK) err=UNZ_ERRNO;
   // total number of entries in the central dir on this disk
   if (unzlocal_getShort(fin,&us.gi.number_entry)!=UNZ_OK) err=UNZ_ERRNO;

format_docs/pdb/pdb_format.txt

@@ -3,7 +3,7 @@ Format
 
 A PDB file can be broken into multiple parts. The header, record 0 and data.
 values stored within the various parts are big-endian byte order. The data
-part is is broken down into multiple sections. The section count and offsets
+part is broken down into multiple sections. The section count and offsets
 are referenced in the PDB header. Sections can be no more than 65505 bytes in
 length.
 

src/calibre/gui2/keyboard.py

@@ -78,7 +78,7 @@ def finalize(shortcuts, custom_keys_map={}):  # {{{
     '''
     Resolve conflicts and assign keys to every action in shortcuts, which must
     be a OrderedDict. User specified mappings of unique names to keys (as a
-    list of strings) should be passed in in custom_keys_map. Return a mapping
+    list of strings) should be passed in custom_keys_map. Return a mapping
     of unique names to resolved keys. Also sets the set_to_default member
     correctly for each shortcut.
     '''

src/calibre/gui2/library/models.py

@@ -386,7 +386,7 @@ class BooksModel(QAbstractTableModel):  # {{{
     def stop_metadata_backup(self):
         if getattr(self, 'metadata_backup', None) is not None:
             self.metadata_backup.stop()
-            # Would like to to a join here, but the thread might be waiting to
+            # Would like to a join here, but the thread might be waiting to
             # do something on the GUI thread. Deadlock.
 
     def refresh_ids(self, ids, current_row=-1):

src/calibre/gui2/toc/main.py

@@ -521,7 +521,7 @@ class TreeWidget(QTreeWidget):  # {{{
     def selectedIndexes(self):
         ans = super().selectedIndexes()
         if self.in_drop_event:
-            # For order to be be preserved when moving by drag and drop, we
+            # For order to be preserved when moving by drag and drop, we
             # have to ensure that selectedIndexes returns an ordered list of
             # indexes.
             sort_map = {self.indexFromItem(item):i for i, item in enumerate(self.iter_items())}

src/calibre/utils/speedup.c

@@ -461,7 +461,7 @@ static PyObject*
 set_thread_name(PyObject *self, PyObject *args) {
 	(void)(self); (void)(args);
 #if defined(_MSC_VER) || defined(__HAIKU__)
-	PyErr_SetString(PyExc_RuntimeError, "Setting thread names not supported on on this platform");
+	PyErr_SetString(PyExc_RuntimeError, "Setting thread names not supported on this platform");
 	return NULL;
 #else
 	char *name;