Remove unnecessary check from script

The script now simply checks if ~/.simpleargs.d/simpleargs exists but
not if it's readable. That will be implicitly handled when it is
sourced.

Author: Eetami

README.md

@@ -10,7 +10,7 @@ install files related to [simpleargs](https://github.com/laurivan/simpleargs) un
 your home directory in `~/.simpleargs.d/`.
 
 ```bash
-SUBNET_VERSION='v0.2.0'
+SUBNET_VERSION='v0.2.1'
 wget -O ~/.local/bin/subnet https://github.com/eetami/subnet/releases/download/${SUBNET_VERSION}/subnet
 subnet -h
 man subnet

src/subnet

@@ -8,8 +8,7 @@ SCRIPT=$(basename $0)
 if [ ! -v SIMPLEARGS ] || [ ! -r "$SIMPLEARGS" ]; then
   SIMPLEARGS_DIR="${HOME}/.simpleargs.d"
   SIMPLEARGS="${SIMPLEARGS_DIR}/simpleargs"
-  if [ ! -r $SIMPLEARGS ]; then
-    [ -e SIMPLEARGS ] && { echo "ERROR: File exists $SIMPLEARGS but is not readable!" >&2; exit 1; }
+  if [ ! -f $SIMPLEARGS ]; then
     [ ! -d $SIMPLEARGS_DIR ] && mkdir $SIMPLEARGS_DIR
     SIMPLEARGS_VERSION='v0.2.0'
     SIMPLEARGS_URL="https://github.com/laurivan/simpleargs/releases/download/${SIMPLEARGS_VERSION}/simpleargs-${SIMPLEARGS_VERSION}"