test-narrow-clone-stream: include uppercase letter in filename

This makes encoded filenames differ from the original names.

tests/test-narrow-clone-stream.t

@@ -1,86 +1,86 b''
 #testcases tree flat
 
 Tests narrow stream clones
 
   $ . "$TESTDIR/narrow-library.sh"
 
 #if tree
   $ cat << EOF >> $HGRCPATH
   > [experimental]
   > treemanifest = 1
   > EOF
 #endif
 
 Server setup
 
   $ hg init master
   $ cd master
   $ mkdir dir
   $ mkdir dir/src
   $ cd dir/src
-  $ for x in `$TESTDIR/seq.py 20`; do echo $x > "f$x"; hg add "f$x"; hg commit -m "Commit src $x"; done
+  $ for x in `$TESTDIR/seq.py 20`; do echo $x > "F$x"; hg add "F$x"; hg commit -m "Commit src $x"; done
 
   $ cd ..
   $ mkdir tests
   $ cd tests
-  $ for x in `$TESTDIR/seq.py 20`; do echo $x > "f$x"; hg add "f$x"; hg commit -m "Commit src $x"; done
+  $ for x in `$TESTDIR/seq.py 20`; do echo $x > "F$x"; hg add "F$x"; hg commit -m "Commit src $x"; done
   $ cd ../../..
 
 Trying to stream clone when the server does not support it
 
-  $ hg clone --narrow ssh://user@dummy/master narrow --noupdate --include "dir/src/f10" --stream
+  $ hg clone --narrow ssh://user@dummy/master narrow --noupdate --include "dir/src/F10" --stream
   streaming all changes
   remote: abort: server does not support narrow stream clones
   abort: pull failed on remote
   [255]
 
 Enable stream clone on the server
 
   $ echo "[experimental]" >> master/.hg/hgrc
   $ echo "server.stream-narrow-clones=True" >> master/.hg/hgrc
 
 Cloning a specific file when stream clone is supported
 
-  $ hg clone --narrow ssh://user@dummy/master narrow --noupdate --include "dir/src/f10" --stream
+  $ hg clone --narrow ssh://user@dummy/master narrow --noupdate --include "dir/src/F10" --stream
   streaming all changes
   * files to transfer, * KB of data (glob)
   transferred * KB in * seconds (* */sec) (glob)
 
   $ cd narrow
   $ ls
   $ hg tracked
-  I path:dir/src/f10
+  I path:dir/src/F10
 
 Making sure we have the correct set of requirements
 
   $ cat .hg/requires
   dotencode
   fncache
   generaldelta
   narrowhg-experimental
   revlogv1
   store
   treemanifest (tree !)
 
 Making sure store has the required files
 
   $ ls .hg/store/
   00changelog.i
   00manifest.i
   data
   fncache
   meta (tree !)
   narrowspec
   undo
   undo.backupfiles
   undo.phaseroots
 
 Checking that repository has all the required data and not broken
 
   $ hg verify
   checking changesets
   checking manifests
   checking directory manifests (tree !)
   crosschecking files in changesets and manifests
   checking files
   checked 40 changesets with 1 changes to 1 files