test/: Do not error out if libfaketime is missing

If the faketime library is missing, show a warning and skip the test.
However, do not error out to make sure the test suite is able to
terminate successfully on systems without libfaketime.

Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>

test/appointment-001.sh

@@ -2,7 +2,7 @@
 
 if [ ! -x "$(command -v faketime)" ]; then
   echo "libfaketime not found - skipping $0..."
-  exit 1
+  exit 0
 fi
 
 if [ "$1" = 'actual' ]; then

test/day-002.sh

@@ -2,7 +2,7 @@
 
 if [ ! -x "$(command -v faketime)" ]; then
   echo "libfaketime not found - skipping $0..."
-  exit 1
+  exit 0
 fi
 
 if [ "$1" = 'actual' ]; then

test/day-003.sh

@@ -2,7 +2,7 @@
 
 if [ ! -x "$(command -v faketime)" ]; then
   echo "libfaketime not found - skipping $0..."
-  exit 1
+  exit 0
 fi
 
 if [ "$1" = 'actual' ]; then

test/next-001.sh

@@ -2,7 +2,7 @@
 
 if [ ! -x "$(command -v faketime)" ]; then
   echo "libfaketime not found - skipping $0..."
-  exit 1
+  exit 0
 fi
 
 if [ "$1" = 'actual' ]; then

test/range-001.sh

@@ -2,7 +2,7 @@
 
 if [ ! -x "$(command -v faketime)" ]; then
   echo "libfaketime not found - skipping $0..."
-  exit 1
+  exit 0
 fi
 
 if [ "$1" = 'actual' ]; then

test/range-002.sh

@@ -2,7 +2,7 @@
 
 if [ ! -x "$(command -v faketime)" ]; then
   echo "libfaketime not found - skipping $0..."
-  exit 1
+  exit 0
 fi
 
 if [ "$1" = 'actual' ]; then

test/range-003.sh

@@ -2,7 +2,7 @@
 
 if [ ! -x "$(command -v faketime)" ]; then
   echo "libfaketime not found - skipping $0..."
-  exit 1
+  exit 0
 fi
 
 if [ "$1" = 'actual' ]; then

test/search-001.sh

@@ -2,7 +2,7 @@
 
 if [ ! -x "$(command -v faketime)" ]; then
   echo "libfaketime not found - skipping $0..."
-  exit 1
+  exit 0
 fi
 
 if [ "$1" = 'actual' ]; then