Updates to the documentation on the VFS xOpen method.

FossilOrigin-Name: 1719cb8f49bb138adcf8913a2d042f9e1360d78a

manifest

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-D 2010-09-07T19:10:02
+C Updates\sto\sthe\sdocumentation\son\sthe\sVFS\sxOpen\smethod.
+D 2010-09-07T23:28:58
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@@ -177,7 +177,7 @@ F src/resolve.c 1c0f32b64f8e3f555fe1f732f9d6f501a7f05706
 F src/rowset.c 69afa95a97c524ba6faf3805e717b5b7ae85a697
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@@ -860,14 +860,14 @@ F tool/speedtest2.tcl ee2149167303ba8e95af97873c575c3e0fab58ff
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manifest.uuid

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src/sqlite.h.in

@@ -752,9 +752,13 @@ typedef struct sqlite3_mutex sqlite3_mutex;
 ** The zName field holds the name of the VFS module.  The name must
 ** be unique across all VFS modules.
 **
-** ^SQLite will guarantee that the zFilename parameter to xOpen
+** ^SQLite guarantees that the zFilename parameter to xOpen
 ** is either a NULL pointer or string obtained
-** from xFullPathname().  ^SQLite further guarantees that
+** from xFullPathname() with an optional suffix added.
+** ^If a suffix is added to the zFilename parameter, it will
+** consist of a single "-" character followed by no more than
+** 10 alphanumeric and/or "-" characters.
+** ^SQLite further guarantees that
 ** the string will be valid and unchanged until xClose() is
 ** called. Because of the previous sentence,
 ** the [sqlite3_file] can safely store a pointer to the