Hey! I was reading SQLite's code just to get a feel for its B-tree implementation, when I noticed a weirdly worded piece of a comment. I presume it's simply missing a single word: "This can if" → "This can happen if". Here's the diff to fix it:

```
--- src/btree.c
+++ src/btree.c
@@ -8498,11 +8498,11 @@
 
 /*
 ** Return SQLITE_CORRUPT if any cursor other than pCur is currently valid
 ** on the same B-tree as pCur.
 **
-** This can if a database is corrupt with two or more SQL tables
+** This can happen if a database is corrupt with two or more SQL tables
 ** pointing to the same b-tree.  If an insert occurs on one SQL table
 ** and causes a BEFORE TRIGGER to do a secondary insert on the other SQL
 ** table linked to the same b-tree.  If the secondary insert causes a
 ** rebalance, that can change content out from under the cursor on the
 ** first SQL table, violating invariants on the first insert.
```