tests/search.sh: minor fix to unbreak tests after search ux merge

tests/search.sh

@@ -30,7 +30,7 @@ clearCache
 (( $(nix search nosuchpackageexists | wc -l) == 0 ))
 
 # Search for multiple arguments
-(( $(nix search hello empty | wc -l) == 5 ))
+(( $(nix search hello empty | wc -l) == 3 ))
 
 # Multiple arguments will not exist
 (( $(nix search hello broken | wc -l) == 0 ))