diff --git a/Makefile.inc1 b/Makefile.inc1
--- a/Makefile.inc1
+++ b/Makefile.inc1
@@ -626,7 +626,7 @@
 .if ${BUILD_WITH_STRICT_TMPPATH} != 0
 MKTEMP=${WORLDTMP}/legacy/usr/bin/mktemp
 .if !exists(${MKTEMP})
-.error "mktemp binary doesn't exist in expected location: ${MKTEMP}"
+.error mktemp binary doesn't exist in expected location: ${MKTEMP}
 .endif
 .else
 MKTEMP=mktemp
diff --git a/share/mk/bsd.compiler.mk b/share/mk/bsd.compiler.mk
--- a/share/mk/bsd.compiler.mk
+++ b/share/mk/bsd.compiler.mk
@@ -160,7 +160,7 @@
 .for var in ${_exported_vars}
 .if defined(${var}) && (!defined(${var}__${${X_}_cc_hash}) || ${${var}__${${X_}_cc_hash}} != ${${var}})
 .if defined(${var}__${${X_}_ld_hash})
-.info "Cannot import ${X_}COMPILER variables since cached ${var} is different: ${${var}__${${X_}_cc_hash}} != ${${var}}"
+.info Cannot import ${X_}COMPILER variables since cached ${var} is different: ${${var}__${${X_}_cc_hash}} != ${${var}}
 .endif
 _can_export=	no
 .endif
diff --git a/share/mk/bsd.dep.mk b/share/mk/bsd.dep.mk
--- a/share/mk/bsd.dep.mk
+++ b/share/mk/bsd.dep.mk
@@ -199,11 +199,11 @@
 # Absolute paths to OBJS should be an error inside ${SRCTOP}, but some users
 # might be relying on this feature, so add an opt-out mechanism.
 .if defined(SRCTOP) && ${OBJS:M${SRCTOP}*}
-.error "$$OBJS inside $$SRCTOP not allowed: ${OBJS:M${SRCTOP}*}"
+.error $$OBJS inside $$SRCTOP not allowed: ${OBJS:M${SRCTOP}*}
 .elif ${OBJS:N${_ABSOLUTE_PATH_OBJS}:M/*}
-.error "$$OBJS absolute path not allowed: ${OBJS:N${_ABSOLUTE_PATH_OBJS}:M/*}. \
+.error $$OBJS absolute path not allowed: ${OBJS:N${_ABSOLUTE_PATH_OBJS}:M/*}.\
     If this is intended, add them to _ABSOLUTE_PATH_OBJS to silence this error\
-    or define _ALLOW_ABSOLUTE_OBJ_PATH to disable this diagnostic."
+    or define _ALLOW_ABSOLUTE_OBJ_PATH to disable this diagnostic.
 .endif
 .endif
 DEPENDOBJS+=	${OBJS}
diff --git a/share/mk/bsd.endian.mk b/share/mk/bsd.endian.mk
--- a/share/mk/bsd.endian.mk
+++ b/share/mk/bsd.endian.mk
@@ -16,7 +16,7 @@
 CAP_MKDB_ENDIAN= -b
 LOCALEDEF_ENDIAN= -b
 .elif ${.MAKE.OS} == "FreeBSD"
-.error "Don't know the endian of this architecture"
+.error Don't know the endian of this architecture
 .else
 #
 # During bootstrapping on !FreeBSD OSes, we need to define some value.  Short of
diff --git a/share/mk/bsd.linker.mk b/share/mk/bsd.linker.mk
--- a/share/mk/bsd.linker.mk
+++ b/share/mk/bsd.linker.mk
@@ -46,7 +46,7 @@
 .for var in ${_exported_vars}
 .if defined(${var}) && (!defined(${var}__${${X_}_ld_hash}) || ${${var}__${${X_}_ld_hash}} != ${${var}})
 .if defined(${var}__${${X_}_ld_hash})
-.info "Cannot import ${X_}LINKER variables since cached ${var} is different: ${${var}__${${X_}_ld_hash}} != ${${var}}"
+.info Cannot import ${X_}LINKER variables since cached ${var} is different: ${${var}__${${X_}_ld_hash}} != ${${var}}
 .endif
 _can_export=	no
 .endif
diff --git a/share/mk/bsd.mkopt.mk b/share/mk/bsd.mkopt.mk
--- a/share/mk/bsd.mkopt.mk
+++ b/share/mk/bsd.mkopt.mk
@@ -37,7 +37,7 @@
 .for var in ${__DEFAULT_YES_OPTIONS}
 .if !defined(MK_${var})
 .if defined(WITH_${var}) && ${WITH_${var}} == "no"
-.warning "Use WITHOUT_${var}=1 instead of WITH_${var}=no"
+.warning Use WITHOUT_${var}=1 instead of WITH_${var}=no
 .endif
 .if defined(WITHOUT_${var})			# WITHOUT always wins
 MK_${var}:=	no
@@ -46,7 +46,7 @@
 .endif
 .else
 .if ${MK_${var}} != "yes" && ${MK_${var}} != "no"
-.error "Illegal value for MK_${var}: ${MK_${var}}"
+.error Illegal value for MK_${var}: ${MK_${var}}
 .endif
 .endif # !defined(MK_${var})
 .endfor
@@ -58,7 +58,7 @@
 .for var in ${__DEFAULT_NO_OPTIONS}
 .if !defined(MK_${var})
 .if defined(WITH_${var}) && ${WITH_${var}} == "no"
-.warning "Use WITHOUT_${var}=1 instead of WITH_${var}=no"
+.warning Use WITHOUT_${var}=1 instead of WITH_${var}=no
 .endif
 .if defined(WITH_${var}) && !defined(WITHOUT_${var}) # WITHOUT always wins
 MK_${var}:=	yes
@@ -67,7 +67,7 @@
 .endif
 .else
 .if ${MK_${var}} != "yes" && ${MK_${var}} != "no"
-.error "Illegal value for MK_${var}: ${MK_${var}}"
+.error Illegal value for MK_${var}: ${MK_${var}}
 .endif
 .endif # !defined(MK_${var})
 .endfor
diff --git a/share/mk/bsd.opts.mk b/share/mk/bsd.opts.mk
--- a/share/mk/bsd.opts.mk
+++ b/share/mk/bsd.opts.mk
@@ -124,7 +124,7 @@
     WARNS \
     WERROR
 .if defined(NO_${var})
-.error "NO_${var} is defined, but deprecated. Please use MK_${var}=no instead."
+.error NO_${var} is defined, but deprecated. Please use MK_${var}=no instead.
 MK_${var}:=no
 .endif
 .endfor
diff --git a/share/mk/bsd.sanitizer.mk b/share/mk/bsd.sanitizer.mk
--- a/share/mk/bsd.sanitizer.mk
+++ b/share/mk/bsd.sanitizer.mk
@@ -24,7 +24,7 @@
 
 .if !defined(BOOTSTRAPPING) && ${_use_sanitizers} != "no" && \
     ${COMPILER_TYPE} != "clang" && make(all)
-.error "Sanitizer instrumentation currently only supported with clang"
+.error Sanitizer instrumentation currently only supported with clang
 .endif
 
 # For libraries we only instrument the shared and PIE libraries by setting
diff --git a/share/mk/netbsd-tests.test.mk b/share/mk/netbsd-tests.test.mk
--- a/share/mk/netbsd-tests.test.mk
+++ b/share/mk/netbsd-tests.test.mk
@@ -6,7 +6,7 @@
 TESTSRC?=	${SRCTOP}/contrib/netbsd-tests/${RELDIR:H}
 
 .if !exists(${TESTSRC}/)
-.error "Please define TESTSRC to the absolute path of the test sources, e.g. $${SRCTOP}/contrib/netbsd-tests/lib/libc/stdio"
+.error Please define TESTSRC to the absolute path of the test sources, e.g. $${SRCTOP}/contrib/netbsd-tests/lib/libc/stdio
 .endif
 
 .PATH: ${TESTSRC}