add shell=True to lsmod commnad

Fixes #740

Using shell=True is fine here because the shell command doesn't take in any user input

auto_cpufreq/battery_scripts/battery.py

@@ -5,7 +5,7 @@
 from auto_cpufreq.battery_scripts.ideapad_laptop import ideapad_laptop_print_thresholds, ideapad_laptop_setup
 from auto_cpufreq.battery_scripts.thinkpad import thinkpad_print_thresholds, thinkpad_setup
 
-def lsmod(module): return module in run(['lsmod'], stdout=PIPE, stderr=PIPE, text=True).stdout
+def lsmod(module): return module in run(['lsmod'], stdout=PIPE, stderr=PIPE, text=True, shell=True).stdout
 
 def battery_get_thresholds():
     if lsmod("ideapad_acpi"): ideapad_acpi_print_thresholds()