scripts/: fix some comment spelling errors

I found that there are many spelling errors in the comments of qemu,
so I used the spellcheck tool to check the spelling errors
and finally found some spelling errors in the scripts folder.

Signed-off-by: zhaolichang <zhaolichang@huawei.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20200917075029.313-5-zhaolichang@huawei.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

scripts/checkpatch.pl

@@ -1870,7 +1870,7 @@ sub process {
 			substr($s, 0, length($c), '');
 
 			# Make sure we remove the line prefixes as we have
-			# none on the first line, and are going to readd them
+			# none on the first line, and are going to re-add them
 			# where necessary.
 			$s =~ s/\n./\n/gs;
 

scripts/clean-header-guards.pl

@@ -19,7 +19,7 @@
 # Does the following:
 # - Header files without a recognizable header guard are skipped.
 # - Clean up any untidy header guards in-place.  Warn if the cleanup
-#   renames guard symbols, and explain how to find occurences of these
+#   renames guard symbols, and explain how to find occurrences of these
 #   symbols that may have to be updated manually.
 # - Warn about duplicate header guard symbols.  To make full use of
 #   this warning, you should clean up *all* headers in one run.

scripts/decodetree.py

@@ -94,7 +94,7 @@ def str_indent(c):
 
 
 def str_fields(fields):
-    """Return a string uniquely identifing FIELDS"""
+    """Return a string uniquely identifying FIELDS"""
     r = ''
     for n in sorted(fields.keys()):
         r += '_' + n
@@ -814,7 +814,7 @@ def parse_generic(lineno, parent_pat, name, toks):
     arg = None
     fmt = None
     for t in toks:
-        # '&Foo' gives a format an explcit argument set.
+        # '&Foo' gives a format an explicit argument set.
         if re.fullmatch(re_arg_ident, t):
             tt = t[1:]
             if arg:
@@ -903,7 +903,7 @@ def parse_generic(lineno, parent_pat, name, toks):
     elif not (is_format and width == 0) and width != insnwidth:
         error(lineno, 'definition has {0} bits'.format(width))
 
-    # Do not check for fields overlaping fields; one valid usage
+    # Do not check for fields overlapping fields; one valid usage
     # is to be able to duplicate fields via import.
     fieldmask = 0
     for f in flds.values():

scripts/oss-fuzz/build.sh

@@ -69,7 +69,7 @@ mkdir -p "$DEST_DIR/lib/"  # Copy the shared libraries here
 
 if ! make "-j$(nproc)" qemu-fuzz-i386; then
     fatal "Build failed. Please specify a compiler with fuzzing support"\
-          "using the \$CC and \$CXX environemnt variables"\
+          "using the \$CC and \$CXX environment variables"\
           "\nFor example: CC=clang CXX=clang++ $0"
 fi
 

scripts/tracetool/__init__.py

@@ -34,7 +34,7 @@ def error(*lines):
 def out(*lines, **kwargs):
     """Write a set of output lines.
 
-    You can use kwargs as a shorthand for mapping variables when formating all
+    You can use kwargs as a shorthand for mapping variables when formatting all
     the strings in lines.
     """
     lines = [ l % kwargs for l in lines ]