Replaced mixed usage of tabs and spaces for indents with tabs only (#3813)

Python 3 (PEP 8) strictly disallows mixed use of tabs and spaces
for indentation
frappe innstalltion only throws error on frappe/utils/jinja.py as
of now but the rest are almost equally likely to fail, so changed
all of them in one commit

frappe/utils/boilerplate.py

@@ -39,7 +39,7 @@ def make_boilerplate(dest, app_name):
 
 			if hook_key=="app_name" and hook_val.lower().replace(" ", "_") != hook_val:
 				print("App Name must be all lowercase and without spaces")
-  				hook_val = ""
+				hook_val = ""
 			elif hook_key=="app_title" and not re.match("^(?![\W])[^\d_\s][\w -]+$", hook_val, re.UNICODE):
 				print("App Title should start with a letter and it can only consist of letters, numbers, spaces and underscores")
 				hook_val = ""

frappe/utils/global_search.py

@@ -218,9 +218,9 @@ def update_global_search(doc):
 	# Get children
 	for child in doc.meta.get_table_fields():
 		for d in doc.get(child.fieldname):
-		  	if d.parent == doc.name:
-		  		for field in d.meta.get_global_search_fields():
-		  			if d.get(field.fieldname):
+			if d.parent == doc.name:
+				for field in d.meta.get_global_search_fields():
+					if d.get(field.fieldname):
 						content.append(get_formatted_value(d.get(field.fieldname), field))
 
 	if content:

frappe/utils/jinja.py

@@ -47,7 +47,7 @@ def validate_template(html):
 	try:
 		jenv.from_string(html)
 	except TemplateSyntaxError as e:
- 		frappe.msgprint('Line {}: {}'.format(e.lineno, e.message))
+		frappe.msgprint('Line {}: {}'.format(e.lineno, e.message))
 		frappe.throw(frappe._("Syntax error in template"))
 
 def render_template(template, context, is_path=None):