Improvements to the sqlite3_db_filename() API documentation. No code changes.

FossilOrigin-Name: 711f5ec4dc2635e3102a607510cbbe0b468d9f0af935e09d3454e6e925c8dcb2

manifest

@@ -1,5 +1,5 @@
-C New\stest\scases\sadded\sto\stest/fuzzdata8.db
-D 2019-03-13T13:19:05.629
+C Improvements\sto\sthe\ssqlite3_db_filename()\sAPI\sdocumentation.\s\sNo\scode\schanges.
+D 2019-03-13T23:51:05.352
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F Makefile.in 236d2739dc3e823c3c909bca2d6cef93009bafbefd7018a8f3281074ecb92954
@@ -517,7 +517,7 @@ F src/resolve.c 09419ad5c432190b69be7c0c326e03abb548a97c2c50675b81b459e1b382d1d2
 F src/rowset.c d977b011993aaea002cab3e0bb2ce50cf346000dff94e944d547b989f4b1fe93
 F src/select.c 9263f5c30dd44c7ac2eb29f40a7ec64322a96885b71c00de6bc30b756c2e1c49
 F src/shell.c.in 01c0cc01391d00d247fdf640052d38c267fc16d975bc4f3154a02277c232dbeb
-F src/sqlite.h.in 02be315feaf20c06028aacf3b032b5e7211e9aae066284eef77b081646b43ea0
+F src/sqlite.h.in c4b05fbafbcd28ad4f0a7f7c204108d10879d83b595fbb6ba321dc942dbe8f34
 F src/sqlite3.rc 5121c9e10c3964d5755191c80dd1180c122fc3a8
 F src/sqlite3ext.h 960f1b86c3610fa23cb6a267572a97dcf286e77aa0dd3b9b23292ffaa1ea8683
 F src/sqliteInt.h f253c4ec15e577a293a462e5049f8ea1d0c7a31819b3a88acdd24698df8f4d0b
@@ -1806,7 +1806,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
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+P 049e9926202317f58c54b6351ff120fb69bf821f409909b1a1c5e335c0396707
+R 39c174379b5366cfc858dc478a80ca32
 U drh
-Z d6a52f5ceaf622e4596e35b74cc6b2d3
+Z 8e6e583280280788d9483d2f649c2e61

manifest.uuid

@@ -1 +1 @@
-049e9926202317f58c54b6351ff120fb69bf821f409909b1a1c5e335c0396707
+711f5ec4dc2635e3102a607510cbbe0b468d9f0af935e09d3454e6e925c8dcb2

src/sqlite.h.in

@@ -5803,7 +5803,7 @@ sqlite3 *sqlite3_db_handle(sqlite3_stmt*);
 ** associated with database N of connection D.  ^The main database file
 ** has the name "main".  If there is no attached database N on the database
 ** connection D, or if database N is a temporary or in-memory database, then
-** a NULL pointer is returned.
+** this function will return either a NULL pointer or an empty string.
 **
 ** ^The filename returned by this function is the output of the
 ** xFullPathname method of the [VFS].  ^In other words, the filename