[Utils] Fix indentation error in utils/wciia.py

Running this script gives
```
"llvm-project/llvm/./utils/wciia.py", line 56
    if word == "N:":
TabError: inconsistent use of tabs and spaces in indentation
```
Under emacs' whitespace-mode, it shows
```
for·line·in·code_owners_file:$
····for·word·in·line.split():$
»       if·word·==·"N:":$
»       »       name·=·line[2:].strip()$
»       »       if·code_owner:$
»       »       »       process_code_owner(code_owner)$
»       »       »       code_owner·=·{}$
```
I use `yapf` to format this script directly and it's running correctly.

utils/wciia.py

@@ -1,5 +1,4 @@
 #!/usr/bin/env python
-
 """
 wciia - Whose Code Is It Anyway
 
@@ -25,89 +24,94 @@ import os
 
 code_owners = {}
 
+
 def process_files_and_folders(owner):
-	filesfolders = owner['filesfolders']
-	# paths must be in ( ... ) so strip them
-	lpar = filesfolders.find('(')
-	rpar = filesfolders.rfind(')')
-	if rpar <= lpar:
-		# give up
-		return
-	paths = filesfolders[lpar+1:rpar]
-	# split paths
-	owner['paths'] = []
-	for path in paths.split():
-		owner['paths'].append(path)
+    filesfolders = owner['filesfolders']
+    # paths must be in ( ... ) so strip them
+    lpar = filesfolders.find('(')
+    rpar = filesfolders.rfind(')')
+    if rpar <= lpar:
+        # give up
+        return
+    paths = filesfolders[lpar + 1:rpar]
+    # split paths
+    owner['paths'] = []
+    for path in paths.split():
+        owner['paths'].append(path)
+
 
 def process_code_owner(owner):
-	if 'filesfolders' in owner:
-		filesfolders = owner['filesfolders']
-	else:
-#		print "F: field missing, using D: field"
-		owner['filesfolders'] = owner['description']
-	process_files_and_folders(owner)
-	code_owners[owner['name']] = owner
+    if 'filesfolders' in owner:
+        filesfolders = owner['filesfolders']
+    else:
+        #		print "F: field missing, using D: field"
+        owner['filesfolders'] = owner['description']
+    process_files_and_folders(owner)
+    code_owners[owner['name']] = owner
+
 
 # process CODE_OWNERS.TXT first
 code_owners_file = open("CODE_OWNERS.TXT", "r").readlines()
 code_owner = {}
 for line in code_owners_file:
     for word in line.split():
-	if word == "N:":
-		name = line[2:].strip()
-		if code_owner:
-			process_code_owner(code_owner)
-			code_owner = {}
-		# reset the values
-		code_owner['name'] = name
-	if word == "E:":
-		email = line[2:].strip()
-		code_owner['email'] = email
-	if word == "D:":
-		description = line[2:].strip()
-		code_owner['description'] = description
-	if word == "F:":
-		filesfolders = line[2:].strip()
-		code_owner['filesfolders'].append(filesfolders)
+        if word == "N:":
+            name = line[2:].strip()
+            if code_owner:
+                process_code_owner(code_owner)
+                code_owner = {}
+            # reset the values
+            code_owner['name'] = name
+        if word == "E:":
+            email = line[2:].strip()
+            code_owner['email'] = email
+        if word == "D:":
+            description = line[2:].strip()
+            code_owner['description'] = description
+        if word == "F:":
+            filesfolders = line[2:].strip()
+            code_owner['filesfolders'].append(filesfolders)
+
 
 def find_owners(fpath):
-	onames = []
-	lmatch = -1
-	#  very simplistic way of findning the best match
-	for name in code_owners:
-		owner = code_owners[name]
-		if 'paths' in owner:
-			for path in owner['paths']:
-#				print "searching (" + path + ")"
-				# try exact match
-				if fpath == path:
-					return name
-				# see if path ends with a *
-				rstar = path.rfind('*')
-				if rstar>0:
-					# try the longest match,
-					rpos = -1
-					if len(fpath) < len(path):
-						rpos = path.find(fpath)
-					if rpos == 0:
-						onames.append(name)
-	onames.append('Chris Lattner')
-	return onames
+    onames = []
+    lmatch = -1
+    #  very simplistic way of findning the best match
+    for name in code_owners:
+        owner = code_owners[name]
+        if 'paths' in owner:
+            for path in owner['paths']:
+                #				print "searching (" + path + ")"
+                # try exact match
+                if fpath == path:
+                    return name
+                # see if path ends with a *
+                rstar = path.rfind('*')
+                if rstar > 0:
+                    # try the longest match,
+                    rpos = -1
+                    if len(fpath) < len(path):
+                        rpos = path.find(fpath)
+                    if rpos == 0:
+                        onames.append(name)
+    onames.append('Chris Lattner')
+    return onames
+
 
 # now lest try to find the owner of the file or folder
 import sys
 
 if len(sys.argv) < 2:
-	print("usage " + sys.argv[0] + " file_or_folder")
-	exit(-1)
+    print("usage " + sys.argv[0] + " file_or_folder")
+    exit(-1)
 
 # the path we are checking
 path = str(sys.argv[1])
 
 # check if this is real path
 if not os.path.exists(path):
-	print("path (" + path + ") does not exist")
-	exit(-1)
+    print("path (" + path + ") does not exist")
+    exit(-1)
 
 owners_name = find_owners(path)
 
@@ -119,8 +123,8 @@ exit(0)
 # bottom up walk of the current .
 # not yet used
 root = "."
-for dir,subdirList,fileList in os.walk( root , topdown=False ) :
-   print("dir :" , dir)
-   for fname in fileList :
-      print("-" , fname)
-   print()
+for dir, subdirList, fileList in os.walk(root, topdown=False):
+    print("dir :", dir)
+    for fname in fileList:
+        print("-", fname)
+    print()