spelling: 'a' vs 'an'

Closes #17487

tests/data/test1267

@@ -23,7 +23,7 @@ swsclose
 http
 </server>
 <name>
-HTTP GET with a invalid HTTP/1 response line start
+HTTP GET with an invalid HTTP/1 response line start
 </name>
 <command>
 http://%HOSTIP:%HTTPPORT/%TESTNUMBER --http0.9

tests/data/test1704

@@ -33,7 +33,7 @@ h2c
 http
 </server>
 <name>
-HTTP/1 doing HTTP/2 Upgrade: getting a HTTP/2 101 response
+HTTP/1 doing HTTP/2 Upgrade: getting an HTTP/2 101 response
 </name>
 <command>
 http://%HOSTIP:%HTTPPORT/%TESTNUMBER --http2

tests/data/test208

@@ -30,7 +30,7 @@ ftp
 proxy
 </features>
 <name>
-HTTP PUT to a FTP URL with username+password - over HTTP proxy
+HTTP PUT to an FTP URL with username+password - over HTTP proxy
 </name>
 <command>
 -x http://%HOSTIP:%HTTPPORT ftp://daniel:mysecret@host.com/we/want/%TESTNUMBER -T %LOGDIR/test%TESTNUMBER.txt

tests/http/scorecard.py

@@ -667,7 +667,7 @@ def parse_size(s):
 
 def main():
     parser = argparse.ArgumentParser(prog='scorecard', description="""
-        Run a range of tests to give a scorecard for a HTTP protocol
+        Run a range of tests to give a scorecard for an HTTP protocol
         'h3' or 'h2' implementation in curl.
         """)
     parser.add_argument("-v", "--verbose", action='count', default=1,

tests/http/test_12_reuse.py

@@ -77,7 +77,7 @@ class TestReuse:
 
     @pytest.mark.skipif(condition=not Env.have_h3(), reason="h3 not supported")
     def test_12_03_as_follow_h2h3(self, env: Env, httpd, configures_httpd, nghttpx):
-        # write a alt-svc file that advises h3 instead of h2
+        # write an alt-svc file that advises h3 instead of h2
         asfile = os.path.join(env.gen_dir, 'alt-svc-12_03.txt')
         self.create_asfile(asfile, f'h2 {env.domain1} {env.https_port} h3 {env.domain1} {env.h3_port}')
         curl = CurlClient(env=env)
@@ -91,7 +91,7 @@ class TestReuse:
     @pytest.mark.skipif(condition=not Env.have_h3(), reason="h3 not supported")
     def test_12_04_as_follow_h3h2(self, env: Env, httpd, configures_httpd, nghttpx):
         count = 2
-        # write a alt-svc file the advises h2 instead of h3
+        # write an alt-svc file the advises h2 instead of h3
         asfile = os.path.join(env.gen_dir, 'alt-svc-12_04.txt')
         ts = datetime.now() + timedelta(hours=24)
         expires = f'{ts.year:04}{ts.month:02}{ts.day:02} {ts.hour:02}:{ts.minute:02}:{ts.second:02}'
@@ -113,7 +113,7 @@ class TestReuse:
     def test_12_05_as_follow_h3h1(self, env: Env, httpd, configures_httpd, nghttpx):
         # With '--http3` an Alt-Svc redirection from h3 to h1 is allowed
         count = 2
-        # write a alt-svc file the advises h1 instead of h3
+        # write an alt-svc file the advises h1 instead of h3
         asfile = os.path.join(env.gen_dir, 'alt-svc-12_05.txt')
         ts = datetime.now() + timedelta(hours=24)
         expires = f'{ts.year:04}{ts.month:02}{ts.day:02} {ts.hour:02}:{ts.minute:02}:{ts.second:02}'
@@ -135,7 +135,7 @@ class TestReuse:
     def test_12_06_as_ignore_h3h1(self, env: Env, httpd, configures_httpd, nghttpx):
         # With '--http3-only` an Alt-Svc redirection from h3 to h1 is ignored
         count = 2
-        # write a alt-svc file the advises h1 instead of h3
+        # write an alt-svc file the advises h1 instead of h3
         asfile = os.path.join(env.gen_dir, 'alt-svc-12_05.txt')
         ts = datetime.now() + timedelta(hours=24)
         expires = f'{ts.year:04}{ts.month:02}{ts.day:02} {ts.hour:02}:{ts.minute:02}:{ts.second:02}'
@@ -156,7 +156,7 @@ class TestReuse:
     @pytest.mark.skipif(condition=not Env.have_h3(), reason="h3 not supported")
     def test_12_07_as_ignore_h2h3(self, env: Env, httpd, configures_httpd, nghttpx):
         # With '--http2` an Alt-Svc redirection from h2 to h3 is ignored
-        # write a alt-svc file that advises h3 instead of h2
+        # write an alt-svc file that advises h3 instead of h2
         asfile = os.path.join(env.gen_dir, 'alt-svc-12_03.txt')
         self.create_asfile(asfile, f'h2 {env.domain1} {env.https_port} h3 {env.domain1} {env.h3_port}')
         curl = CurlClient(env=env)

tests/libtest/lib2405.c

@@ -29,7 +29,7 @@
  *  HTTP1 amd HTTP2 (no multiplexing) two transfers (expected two descriptors),
  *  HTTP2 with multiplexing (expected one descriptors)
  *  Improper inputs to the API result in CURLM_BAD_FUNCTION_ARGUMENT.
- *  Sending a empty ufds, and size = 0 will return the number of fds needed.
+ *  Sending an empty ufds, and size = 0 will return the number of fds needed.
  *  Sending a non-empty ufds, but smaller than the fds needed will result in a
  *    CURLM_OUT_OF_MEMORY, and a number of fds that is >= to the number needed.
  *

tests/libtest/lib518.c

@@ -410,7 +410,7 @@ static int test_rlimit(int keep_open)
     }
   }
 
-#endif /* using a FD_SETSIZE bound select() */
+#endif /* using an FD_SETSIZE bound select() */
 
   /*
    * Old or 'backwards compatible' implementations of stdio do not allow

tests/libtest/lib537.c

@@ -424,7 +424,7 @@ static int test_rlimit(int keep_open)
     }
   }
 
-#endif /* using a FD_SETSIZE bound select() */
+#endif /* using an FD_SETSIZE bound select() */
 
   /*
    * Old or 'backwards compatible' implementations of stdio do not allow

tests/unit/unit1660.c

@@ -82,7 +82,7 @@ static const struct testit headers[] = {
   { "2.example.com", NULL,
     "max-age=\"21536000\"; includeSubDomains; includeSubDomains;",
     CURLE_BAD_FUNCTION_ARGUMENT },
-  /* use a unknown directive "include" that should be ignored */
+  /* use an unknown directive "include" that should be ignored */
   { "3.example.com", NULL, "max-age=\"21536000\"; include; includeSubDomains;",
     CURLE_OK },
   /* remove the "3.example.com" one, should still match the example.com */