stackcount: Style fixes for linter (pep8)

tools/stackcount.py

@@ -99,7 +99,8 @@ class Probe(object):
             pass    # Nothing to do -- attach already happened in `load`
 
         if self.matched == 0:
-            raise Exception("No functions matched by pattern %s" % self.pattern)
+            raise Exception("No functions matched by pattern %s" %
+                            self.pattern)
 
     def load(self):
         trace_count_text = """
@@ -142,7 +143,8 @@ BPF_STACK_TRACE(stack_traces, 1024);
             trace_count_text = trace_count_text.replace('GET_PID',
                                         'bpf_get_current_pid_tgid() >> 32')
         else:
-            trace_count_text = trace_count_text.replace('GET_PID', '0xffffffff')
+            trace_count_text = trace_count_text.replace(
+                                    'GET_PID', '0xffffffff')
 
         stack_flags = 'BPF_F_REUSE_STACKID'
         if not self.is_kernel_probe():
@@ -173,8 +175,8 @@ BPF_STACK_TRACE(stack_traces, 1024);
 
         if debug:
             print(bpf_text)
-        self.bpf = BPF(text=bpf_text, usdt_contexts=
-                      [self.usdt] if self.usdt else [])
+        self.bpf = BPF(text=bpf_text,
+                       usdt_contexts=[self.usdt] if self.usdt else [])
 
 class Tool(object):
     def __init__(self):
@@ -187,7 +189,7 @@ class Tool(object):
     ./stackcount -Ti 5 ip_output    # output every 5 seconds, with timestamps
     ./stackcount -p 185 ip_output   # count ip_output stacks for PID 185 only
     ./stackcount -p 185 c:malloc    # count stacks for malloc in PID 185
-    ./stackcount t:sched:sched_fork  # count stacks for the sched_fork tracepoint
+    ./stackcount t:sched:sched_fork # count stacks for sched_fork tracepoint
     ./stackcount -p 185 u:node:*    # count stacks for all USDT probes in node
         """
         parser = argparse.ArgumentParser(
@@ -287,4 +289,3 @@ if __name__ == "__main__":
             traceback.print_exc()
         elif sys.exc_info()[0] is not SystemExit:
             print(sys.exc_info()[1])
-