[DATALAD RUNCMD] Do interactive fixing of some ambigous typos

=== Do not change lines below ===
{
 "chain": [],
 "cmd": "codespell -w -i 3 -C 2",
 "exit": 0,
 "extra_inputs": [],
 "inputs": [],
 "outputs": [],
 "pwd": "."
}
^^^ Do not change lines above ^^^

btrbk

@@ -2340,7 +2340,7 @@ sub extentmap_merge(@) {
   my $end = -2;
   foreach (@range) {
     if($_->[0] <= $end + 1) {
-      # range overlaps the preceeding one, or is adjacent to it
+      # range overlaps the preceding one, or is adjacent to it
       $end = $_->[1] if($_->[1] > $end);
     }
     else {