[Revert] C.UTF-8 doesn't seem to work on some Linux devices

installer/portable/filebot.sh

@@ -29,8 +29,8 @@ if [ -z "$USER" ]; then
 fi
 
 # force JVM language and encoding settings
-export LANG="C.UTF-8"
-export LC_ALL="C.UTF-8"
+export LANG="en_US.UTF-8"
+export LC_ALL="en_US.UTF-8"
 
 # add APP_ROOT and PACKAGE_LIBRARY_PATH to LD_LIBRARY_PATH
 if [ ! -z "$LD_LIBRARY_PATH" ]; then

installer/snappy/filebot/filebot.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
-export LANG="C.UTF-8"
-export LC_ALL="C.UTF-8"
+export LANG="en_US.UTF-8"
+export LC_ALL="en_US.UTF-8"
 
 export JAVA_HOME="$SNAP/usr/lib/jvm/java-8-openjdk-$SNAP_ARCH"
 # export JAVA_TOOL_OPTIONS="-javaagent:$SNAP/usr/share/java/jayatanaag.jar"

installer/spk/package/filebot.sh

@@ -42,8 +42,8 @@ if [ -z "$USER" ]; then
 fi
 
 # force JVM language and encoding settings
-export LANG="C.UTF-8"
-export LC_ALL="C.UTF-8"
+export LANG="en_US.UTF-8"
+export LC_ALL="en_US.UTF-8"
 
 
 # add PACKAGE_LIBRARY_PATH to LD_LIBRARY_PATH