Change #270312

Comments

tidy-up: drop stray comparisons with literal zero

Drop from:
- strcmp, strcmpi, strncmp, memcmp, lstat, getrlimit, setrlimit, fseek,
  fstat
- autotools detection snippets.
- smooth-gtk-thread: simplify `!var != 0` expression.

Closes #21947

Changed files

• docs/examples/anyauthput.c
• docs/examples/ephiperfifo.c
• docs/examples/evhiperfifo.c
• docs/examples/fileupload.c
• docs/examples/ftpupload.c
• docs/examples/ghiper.c
• docs/examples/hiperfifo.c
• docs/examples/http2-upload.c
• docs/examples/httpput.c
• docs/examples/smooth-gtk-thread.c
• docs/examples/synctime.c
• lib/cf-h2-proxy.c
• lib/cookie.c
• lib/curl_fnmatch.c
• lib/ftplistparser.c
• lib/http2.c
• lib/http_proxy.c
• lib/rtsp.c
• lib/vauth/digest.c
• lib/vauth/ntlm.c
• lib/vssh/libssh2.c
• lib/vtls/cipher_suite.c
• lib/vtls/gtls.c
• lib/vtls/mbedtls.c
• lib/vtls/schannel_verify.c
• lib/vtls/wolfssl.c
• m4/curl-functions.m4
• src/tool_vms.c
• tests/libtest/first.c
• tests/libtest/lib1536.c
• tests/libtest/lib1560.c
• tests/libtest/lib3102.c
• tests/libtest/lib518.c
• tests/libtest/lib537.c
• tests/libtest/lib571.c
• tests/libtest/lib576.c
• tests/server/first.c
• tests/server/tftpd.c
• tests/unit/unit1304.c
• tests/unit/unit1620.c
• tests/unit/unit1663.c
• tests/unit/unit1676.c
• tests/unit/unit3205.c