Rename leftover AUDACITY_PATH to TENACITY_PATH

- AUDACITY_PATH no longer exists in Tenacity. TENACITY_PATH has taken
  its place instead.

Signed-off-by: Avery King <avery98@pm.me>

libraries/lib-files/FileNames.h

@@ -98,7 +98,7 @@ namespace FileNames
     *
     * On Unix this will include the directory Audacity was installed into,
     * plus the current user's .audacity-data/Plug-Ins directory.  Additional
-    * directories can be specified using the AUDACITY_PATH environment
+    * directories can be specified using the TENACITY_PATH environment
     * variable.  On Windows or Mac OS, this will include the directory
     * which contains the Audacity program. */
    FILES_API const FilePaths &AudacityPathList();

linux/AppImage/AppRun.sh

@@ -21,7 +21,7 @@ done
 
 export LD_LIBRARY_PATH="${APPDIR}/lib:${LD_LIBRARY_PATH}${fallback_libs}"
 
-export AUDACITY_PATH="${AUDACITY_PATH}:${APPDIR}/share/tenacity"
+export TENACITY_PATH="${TENACITY_PATH}:${APPDIR}/share/tenacity"
 export AUDACITY_MODULES_PATH="${AUDACITY_MODULES_PATH}:${APPDIR}/lib/modules"
 export UBUNTU_MENUPROXY=0
 

linux/tenacity.sh

@@ -5,6 +5,6 @@ share="${0%/*}/share/tenacity"
 
 export LD_LIBRARY_PATH="${lib}:${LD_LIBRARY_PATH}"
 export AUDACITY_MODULES_PATH="${AUDACITY_MODULES_PATH}:${lib}/modules"
-export AUDACITY_PATH="${AUDACITY_PATH}:${share}"
+export TENACITY_PATH="${TENACITY_PATH}:${share}"
 
 exec "${0%/*}/bin/tenacity" "$@"